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Finding the Fourth Proportional to 229,418.96, 316,648.76 and 127,479.42

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Solution

The fourth proportional to 229,418.96, 316,648.76 and 127,479.42 is: 175,949.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,418.96 : 316,648.76 = 127,479.42 : x
  2. Step 2: Convert to fraction form
    229,418.96/316,648.76 = 127,479.42/x
  3. Step 3: Cross multiply
    229,418.96x = 316,648.76 × 127,479.42
  4. Step 4: Simplify right side
    229,418.96x = 40,366,199,631.12
  5. Step 5: Solve for x
    x = 40,366,199,631.12/229,418.96
  6. Step 6: Final answer
    x = 175,949.71

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1.5x scale

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.