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Finding the Fourth Proportional to 293,412, 440,174.56 and 124,929.20

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Solution

The fourth proportional to 293,412, 440,174.56 and 124,929.20 is: 187,417.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,412 : 440,174.56 = 124,929.20 : x
  2. Step 2: Convert to fraction form
    293,412/440,174.56 = 124,929.20/x
  3. Step 3: Cross multiply
    293,412x = 440,174.56 × 124,929.20
  4. Step 4: Simplify right side
    293,412x = 54,990,655,641.15
  5. Step 5: Solve for x
    x = 54,990,655,641.15/293,412
  6. Step 6: Final answer
    x = 187,417.88

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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.