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Finding the Fourth Proportional to 88,128,009.60, 132,192,014.40 and 88,128,009.60

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Solution

The fourth proportional to 88,128,009.60, 132,192,014.40 and 88,128,009.60 is: 132,192,014.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,128,009.60 : 132,192,014.40 = 88,128,009.60 : x
  2. Step 2: Convert to fraction form
    88,128,009.60/132,192,014.40 = 88,128,009.60/x
  3. Step 3: Cross multiply
    88,128,009.60x = 132,192,014.40 × 88,128,009.60
  4. Step 4: Simplify right side
    88,128,009.60x = 11,649,819,114,086,538
  5. Step 5: Solve for x
    x = 11,649,819,114,086,538/88,128,009.60
  6. Step 6: Final answer
    x = 132,192,014.40

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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.