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Finding the Fourth Proportional to 225,106.90, 337,575.60 and 91,915.86

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Solution

The fourth proportional to 225,106.90, 337,575.60 and 91,915.86 is: 137,839.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,106.90 : 337,575.60 = 91,915.86 : x
  2. Step 2: Convert to fraction form
    225,106.90/337,575.60 = 91,915.86/x
  3. Step 3: Cross multiply
    225,106.90x = 337,575.60 × 91,915.86
  4. Step 4: Simplify right side
    225,106.90x = 31,028,552,854.92
  5. Step 5: Solve for x
    x = 31,028,552,854.92/225,106.90
  6. Step 6: Final answer
    x = 137,839.19

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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.