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Finding the Fourth Proportional to 124,001.60, 186,002.40 and 82,448.60

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Solution

The fourth proportional to 124,001.60, 186,002.40 and 82,448.60 is: 123,672.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,001.60 : 186,002.40 = 82,448.60 : x
  2. Step 2: Convert to fraction form
    124,001.60/186,002.40 = 82,448.60/x
  3. Step 3: Cross multiply
    124,001.60x = 186,002.40 × 82,448.60
  4. Step 4: Simplify right side
    124,001.60x = 15,335,637,476.64
  5. Step 5: Solve for x
    x = 15,335,637,476.64/124,001.60
  6. Step 6: Final answer
    x = 123,672.90

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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.