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Finding the Fourth Proportional to 224,748.36, 310,162.17 and 129,255.14

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Solution

The fourth proportional to 224,748.36, 310,162.17 and 129,255.14 is: 178,377.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,748.36 : 310,162.17 = 129,255.14 : x
  2. Step 2: Convert to fraction form
    224,748.36/310,162.17 = 129,255.14/x
  3. Step 3: Cross multiply
    224,748.36x = 310,162.17 × 129,255.14
  4. Step 4: Simplify right side
    224,748.36x = 40,090,053,155.24
  5. Step 5: Solve for x
    x = 40,090,053,155.24/224,748.36
  6. Step 6: Final answer
    x = 178,377.51

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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.