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Finding the Fourth Proportional to 124,654.68, 186,684.01 and 71,904.24

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Solution

The fourth proportional to 124,654.68, 186,684.01 and 71,904.24 is: 107,684.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,654.68 : 186,684.01 = 71,904.24 : x
  2. Step 2: Convert to fraction form
    124,654.68/186,684.01 = 71,904.24/x
  3. Step 3: Cross multiply
    124,654.68x = 186,684.01 × 71,904.24
  4. Step 4: Simplify right side
    124,654.68x = 13,423,371,679.44
  5. Step 5: Solve for x
    x = 13,423,371,679.44/124,654.68
  6. Step 6: Final answer
    x = 107,684.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.