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Finding the Fourth Proportional to 137,129.39, 205,719.84 and 62,254.82

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Solution

The fourth proportional to 137,129.39, 205,719.84 and 62,254.82 is: 93,393.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,129.39 : 205,719.84 = 62,254.82 : x
  2. Step 2: Convert to fraction form
    137,129.39/205,719.84 = 62,254.82/x
  3. Step 3: Cross multiply
    137,129.39x = 205,719.84 × 62,254.82
  4. Step 4: Simplify right side
    137,129.39x = 12,807,050,581.03
  5. Step 5: Solve for x
    x = 12,807,050,581.03/137,129.39
  6. Step 6: Final answer
    x = 93,393.91

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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.