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Finding the Fourth Proportional to 113,787,728.80, 170,429,650.80 and 93,632,336.80

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Solution

The fourth proportional to 113,787,728.80, 170,429,650.80 and 93,632,336.80 is: 140,241,189.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,787,728.80 : 170,429,650.80 = 93,632,336.80 : x
  2. Step 2: Convert to fraction form
    113,787,728.80/170,429,650.80 = 93,632,336.80/x
  3. Step 3: Cross multiply
    113,787,728.80x = 170,429,650.80 × 93,632,336.80
  4. Step 4: Simplify right side
    113,787,728.80x = 15,957,726,464,411,990
  5. Step 5: Solve for x
    x = 15,957,726,464,411,990/113,787,728.80
  6. Step 6: Final answer
    x = 140,241,189.74

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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.