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Finding the Fourth Proportional to 113,486.62, 156,611.53 and 62,498.91

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Solution

The fourth proportional to 113,486.62, 156,611.53 and 62,498.91 is: 86,248.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,486.62 : 156,611.53 = 62,498.91 : x
  2. Step 2: Convert to fraction form
    113,486.62/156,611.53 = 62,498.91/x
  3. Step 3: Cross multiply
    113,486.62x = 156,611.53 × 62,498.91
  4. Step 4: Simplify right side
    113,486.62x = 9,788,049,186.18
  5. Step 5: Solve for x
    x = 9,788,049,186.18/113,486.62
  6. Step 6: Final answer
    x = 86,248.49

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1.5x scale

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.