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Finding the Fourth Proportional to 59,389,978.20, 89,084,967.30 and 52,209,619.80

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Solution

The fourth proportional to 59,389,978.20, 89,084,967.30 and 52,209,619.80 is: 78,314,429.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,389,978.20 : 89,084,967.30 = 52,209,619.80 : x
  2. Step 2: Convert to fraction form
    59,389,978.20/89,084,967.30 = 52,209,619.80/x
  3. Step 3: Cross multiply
    59,389,978.20x = 89,084,967.30 × 52,209,619.80
  4. Step 4: Simplify right side
    59,389,978.20x = 4,651,092,272,628,432
  5. Step 5: Solve for x
    x = 4,651,092,272,628,432/59,389,978.20
  6. Step 6: Final answer
    x = 78,314,429.70

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