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Finding the Fourth Proportional to 235,011,978.40, 352,517,967.60 and 73,453,655.20

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Solution

The fourth proportional to 235,011,978.40, 352,517,967.60 and 73,453,655.20 is: 110,180,482.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,011,978.40 : 352,517,967.60 = 73,453,655.20 : x
  2. Step 2: Convert to fraction form
    235,011,978.40/352,517,967.60 = 73,453,655.20/x
  3. Step 3: Cross multiply
    235,011,978.40x = 352,517,967.60 × 73,453,655.20
  4. Step 4: Simplify right side
    235,011,978.40x = 25,893,733,243,895,176
  5. Step 5: Solve for x
    x = 25,893,733,243,895,176/235,011,978.40
  6. Step 6: Final answer
    x = 110,180,482.80

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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.