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Finding the Fourth Proportional to 229,347.92, 316,510.62 and 127,373.78

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Solution

The fourth proportional to 229,347.92, 316,510.62 and 127,373.78 is: 175,781.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,347.92 : 316,510.62 = 127,373.78 : x
  2. Step 2: Convert to fraction form
    229,347.92/316,510.62 = 127,373.78/x
  3. Step 3: Cross multiply
    229,347.92x = 316,510.62 × 127,373.78
  4. Step 4: Simplify right side
    229,347.92x = 40,315,154,079.54
  5. Step 5: Solve for x
    x = 40,315,154,079.54/229,347.92
  6. Step 6: Final answer
    x = 175,781.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.