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Finding the Fourth Proportional to 121,344.67, 182,098.95 and 42,459.58

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Solution

The fourth proportional to 121,344.67, 182,098.95 and 42,459.58 is: 63,718.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,344.67 : 182,098.95 = 42,459.58 : x
  2. Step 2: Convert to fraction form
    121,344.67/182,098.95 = 42,459.58/x
  3. Step 3: Cross multiply
    121,344.67x = 182,098.95 × 42,459.58
  4. Step 4: Simplify right side
    121,344.67x = 7,731,844,935.44
  5. Step 5: Solve for x
    x = 7,731,844,935.44/121,344.67
  6. Step 6: Final answer
    x = 63,718.04

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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.