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Finding the Fourth Proportional to 88,571,978.40, 132,857,967.60 and 40,796,234.40

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Solution

The fourth proportional to 88,571,978.40, 132,857,967.60 and 40,796,234.40 is: 61,194,351.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,571,978.40 : 132,857,967.60 = 40,796,234.40 : x
  2. Step 2: Convert to fraction form
    88,571,978.40/132,857,967.60 = 40,796,234.40/x
  3. Step 3: Cross multiply
    88,571,978.40x = 132,857,967.60 × 40,796,234.40
  4. Step 4: Simplify right side
    88,571,978.40x = 5,420,104,788,117,205
  5. Step 5: Solve for x
    x = 5,420,104,788,117,205/88,571,978.40
  6. Step 6: Final answer
    x = 61,194,351.60

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.