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Finding the Fourth Proportional to 105,013.66, 144,919.08 and 59,691.92

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Solution

The fourth proportional to 105,013.66, 144,919.08 and 59,691.92 is: 82,374.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,013.66 : 144,919.08 = 59,691.92 : x
  2. Step 2: Convert to fraction form
    105,013.66/144,919.08 = 59,691.92/x
  3. Step 3: Cross multiply
    105,013.66x = 144,919.08 × 59,691.92
  4. Step 4: Simplify right side
    105,013.66x = 8,650,498,129.83
  5. Step 5: Solve for x
    x = 8,650,498,129.83/105,013.66
  6. Step 6: Final answer
    x = 82,374.98

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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.