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Finding the Fourth Proportional to 105,049.64, 144,987.30 and 62,610.86

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Solution

The fourth proportional to 105,049.64, 144,987.30 and 62,610.86 is: 86,414.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,049.64 : 144,987.30 = 62,610.86 : x
  2. Step 2: Convert to fraction form
    105,049.64/144,987.30 = 62,610.86/x
  3. Step 3: Cross multiply
    105,049.64x = 144,987.30 × 62,610.86
  4. Step 4: Simplify right side
    105,049.64x = 9,077,779,542.08
  5. Step 5: Solve for x
    x = 9,077,779,542.08/105,049.64
  6. Step 6: Final answer
    x = 86,414.19

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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.