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Finding the Fourth Proportional to 456,891.68, 685,254.96 and 124,389.92

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Solution

The fourth proportional to 456,891.68, 685,254.96 and 124,389.92 is: 186,562.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,891.68 : 685,254.96 = 124,389.92 : x
  2. Step 2: Convert to fraction form
    456,891.68/685,254.96 = 124,389.92/x
  3. Step 3: Cross multiply
    456,891.68x = 685,254.96 × 124,389.92
  4. Step 4: Simplify right side
    456,891.68x = 85,238,809,654.00
  5. Step 5: Solve for x
    x = 85,238,809,654.00/456,891.68
  6. Step 6: Final answer
    x = 186,562.40

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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.