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Finding the Fourth Proportional to 59,985,843.20, 89,978,764.80 and 43,942,630.40

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Solution

The fourth proportional to 59,985,843.20, 89,978,764.80 and 43,942,630.40 is: 65,913,945.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,985,843.20 : 89,978,764.80 = 43,942,630.40 : x
  2. Step 2: Convert to fraction form
    59,985,843.20/89,978,764.80 = 43,942,630.40/x
  3. Step 3: Cross multiply
    59,985,843.20x = 89,978,764.80 × 43,942,630.40
  4. Step 4: Simplify right side
    59,985,843.20x = 3,953,903,605,454,929.50
  5. Step 5: Solve for x
    x = 3,953,903,605,454,929.50/59,985,843.20
  6. Step 6: Final answer
    x = 65,913,945.60

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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.