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Finding the Fourth Proportional to 316,174.04, 436,330.56 and 172,934.08

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Solution

The fourth proportional to 316,174.04, 436,330.56 and 172,934.08 is: 238,654.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,174.04 : 436,330.56 = 172,934.08 : x
  2. Step 2: Convert to fraction form
    316,174.04/436,330.56 = 172,934.08/x
  3. Step 3: Cross multiply
    316,174.04x = 436,330.56 × 172,934.08
  4. Step 4: Simplify right side
    316,174.04x = 75,456,423,527.16
  5. Step 5: Solve for x
    x = 75,456,423,527.16/316,174.04
  6. Step 6: Final answer
    x = 238,654.71

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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.