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Finding the Fourth Proportional to 91,866,894.60, 137,795,760.54 and 34,354,937.64

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Solution

The fourth proportional to 91,866,894.60, 137,795,760.54 and 34,354,937.64 is: 51,530,693.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,866,894.60 : 137,795,760.54 = 34,354,937.64 : x
  2. Step 2: Convert to fraction form
    91,866,894.60/137,795,760.54 = 34,354,937.64/x
  3. Step 3: Cross multiply
    91,866,894.60x = 137,795,760.54 × 34,354,937.64
  4. Step 4: Simplify right side
    91,866,894.60x = 4,733,964,760,408,073
  5. Step 5: Solve for x
    x = 4,733,964,760,408,073/91,866,894.60
  6. Step 6: Final answer
    x = 51,530,693.19

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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.