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Finding the Fourth Proportional to 124,448.52, 171,742.50 and 67,863

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Solution

The fourth proportional to 124,448.52, 171,742.50 and 67,863 is: 93,652.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,448.52 : 171,742.50 = 67,863 : x
  2. Step 2: Convert to fraction form
    124,448.52/171,742.50 = 67,863/x
  3. Step 3: Cross multiply
    124,448.52x = 171,742.50 × 67,863
  4. Step 4: Simplify right side
    124,448.52x = 11,654,961,277.50
  5. Step 5: Solve for x
    x = 11,654,961,277.50/124,448.52
  6. Step 6: Final answer
    x = 93,652.87

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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.