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Finding the Fourth Proportional to 79,267,071.60, 118,900,607.40 and 25,419,826.80

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Solution

The fourth proportional to 79,267,071.60, 118,900,607.40 and 25,419,826.80 is: 38,129,740.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,267,071.60 : 118,900,607.40 = 25,419,826.80 : x
  2. Step 2: Convert to fraction form
    79,267,071.60/118,900,607.40 = 25,419,826.80/x
  3. Step 3: Cross multiply
    79,267,071.60x = 118,900,607.40 × 25,419,826.80
  4. Step 4: Simplify right side
    79,267,071.60x = 3,022,432,846,522,798.50
  5. Step 5: Solve for x
    x = 3,022,432,846,522,798.50/79,267,071.60
  6. Step 6: Final answer
    x = 38,129,740.20

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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.