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Finding the Fourth Proportional to 72,746,885.60, 109,120,328.40 and 29,593,876.40

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Solution

The fourth proportional to 72,746,885.60, 109,120,328.40 and 29,593,876.40 is: 44,390,814.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,746,885.60 : 109,120,328.40 = 29,593,876.40 : x
  2. Step 2: Convert to fraction form
    72,746,885.60/109,120,328.40 = 29,593,876.40/x
  3. Step 3: Cross multiply
    72,746,885.60x = 109,120,328.40 × 29,593,876.40
  4. Step 4: Simplify right side
    72,746,885.60x = 3,229,293,511,397,010
  5. Step 5: Solve for x
    x = 3,229,293,511,397,010/72,746,885.60
  6. Step 6: Final answer
    x = 44,390,814.60

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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.