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Finding the Fourth Proportional to 59,927,985.60, 89,891,978.40 and 57,943,939.20

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Solution

The fourth proportional to 59,927,985.60, 89,891,978.40 and 57,943,939.20 is: 86,915,908.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,927,985.60 : 89,891,978.40 = 57,943,939.20 : x
  2. Step 2: Convert to fraction form
    59,927,985.60/89,891,978.40 = 57,943,939.20/x
  3. Step 3: Cross multiply
    59,927,985.60x = 89,891,978.40 × 57,943,939.20
  4. Step 4: Simplify right side
    59,927,985.60x = 5,208,695,330,977,314
  5. Step 5: Solve for x
    x = 5,208,695,330,977,314/59,927,985.60
  6. Step 6: Final answer
    x = 86,915,908.80

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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.