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Finding the Fourth Proportional to 229,686.66, 316,981.92 and 127,734.90

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Solution

The fourth proportional to 229,686.66, 316,981.92 and 127,734.90 is: 176,282.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,686.66 : 316,981.92 = 127,734.90 : x
  2. Step 2: Convert to fraction form
    229,686.66/316,981.92 = 127,734.90/x
  3. Step 3: Cross multiply
    229,686.66x = 316,981.92 × 127,734.90
  4. Step 4: Simplify right side
    229,686.66x = 40,489,653,853.01
  5. Step 5: Solve for x
    x = 40,489,653,853.01/229,686.66
  6. Step 6: Final answer
    x = 176,282.13

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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.