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Finding the Fourth Proportional to 107,169.68, 147,895.67 and 58,775.83

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Solution

The fourth proportional to 107,169.68, 147,895.67 and 58,775.83 is: 81,111.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,169.68 : 147,895.67 = 58,775.83 : x
  2. Step 2: Convert to fraction form
    107,169.68/147,895.67 = 58,775.83/x
  3. Step 3: Cross multiply
    107,169.68x = 147,895.67 × 58,775.83
  4. Step 4: Simplify right side
    107,169.68x = 8,692,690,534.86
  5. Step 5: Solve for x
    x = 8,692,690,534.86/107,169.68
  6. Step 6: Final answer
    x = 81,111.47

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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.