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Finding the Fourth Proportional to 480,687.15, 721,102.46 and 177,058.17

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Solution

The fourth proportional to 480,687.15, 721,102.46 and 177,058.17 is: 265,613.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,687.15 : 721,102.46 = 177,058.17 : x
  2. Step 2: Convert to fraction form
    480,687.15/721,102.46 = 177,058.17/x
  3. Step 3: Cross multiply
    480,687.15x = 721,102.46 × 177,058.17
  4. Step 4: Simplify right side
    480,687.15x = 127,677,081,064.81
  5. Step 5: Solve for x
    x = 127,677,081,064.81/480,687.15
  6. Step 6: Final answer
    x = 265,613.68

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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.