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Finding the Fourth Proportional to 109,915.44, 151,658.10 and 62,158.38

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Solution

The fourth proportional to 109,915.44, 151,658.10 and 62,158.38 is: 85,764.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,915.44 : 151,658.10 = 62,158.38 : x
  2. Step 2: Convert to fraction form
    109,915.44/151,658.10 = 62,158.38/x
  3. Step 3: Cross multiply
    109,915.44x = 151,658.10 × 62,158.38
  4. Step 4: Simplify right side
    109,915.44x = 9,426,821,809.88
  5. Step 5: Solve for x
    x = 9,426,821,809.88/109,915.44
  6. Step 6: Final answer
    x = 85,764.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.