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Finding the Fourth Proportional to 74,747,691.60, 112,100,542.20 and 23,645,374.80

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Solution

The fourth proportional to 74,747,691.60, 112,100,542.20 and 23,645,374.80 is: 35,461,420.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,747,691.60 : 112,100,542.20 = 23,645,374.80 : x
  2. Step 2: Convert to fraction form
    74,747,691.60/112,100,542.20 = 23,645,374.80/x
  3. Step 3: Cross multiply
    74,747,691.60x = 112,100,542.20 × 23,645,374.80
  4. Step 4: Simplify right side
    74,747,691.60x = 2,650,659,335,602,216.50
  5. Step 5: Solve for x
    x = 2,650,659,335,602,216.50/74,747,691.60
  6. Step 6: Final answer
    x = 35,461,420.67

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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.