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Finding the Fourth Proportional to 317,568.46, 476,446.26 and 127,931.24

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Solution

The fourth proportional to 317,568.46, 476,446.26 and 127,931.24 is: 191,934.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,568.46 : 476,446.26 = 127,931.24 : x
  2. Step 2: Convert to fraction form
    317,568.46/476,446.26 = 127,931.24/x
  3. Step 3: Cross multiply
    317,568.46x = 476,446.26 × 127,931.24
  4. Step 4: Simplify right side
    317,568.46x = 60,952,360,835.16
  5. Step 5: Solve for x
    x = 60,952,360,835.16/317,568.46
  6. Step 6: Final answer
    x = 191,934.55

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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.