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Finding the Fourth Proportional to 124,598.80, 171,939.52 and 68,008.96

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Solution

The fourth proportional to 124,598.80, 171,939.52 and 68,008.96 is: 93,848.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,598.80 : 171,939.52 = 68,008.96 : x
  2. Step 2: Convert to fraction form
    124,598.80/171,939.52 = 68,008.96/x
  3. Step 3: Cross multiply
    124,598.80x = 171,939.52 × 68,008.96
  4. Step 4: Simplify right side
    124,598.80x = 11,693,427,938.10
  5. Step 5: Solve for x
    x = 11,693,427,938.10/124,598.80
  6. Step 6: Final answer
    x = 93,848.64

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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.