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Finding the Fourth Proportional to 91,283,793.98, 136,932,020.30 and 36,696,401.15

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Solution

The fourth proportional to 91,283,793.98, 136,932,020.30 and 36,696,401.15 is: 55,047,146.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,283,793.98 : 136,932,020.30 = 36,696,401.15 : x
  2. Step 2: Convert to fraction form
    91,283,793.98/136,932,020.30 = 36,696,401.15/x
  3. Step 3: Cross multiply
    91,283,793.98x = 136,932,020.30 × 36,696,401.15
  4. Step 4: Simplify right side
    91,283,793.98x = 5,024,912,346,615,825
  5. Step 5: Solve for x
    x = 5,024,912,346,615,825/91,283,793.98
  6. Step 6: Final answer
    x = 55,047,146.13

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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.