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Finding the Fourth Proportional to 234,709.15, 323,898.72 and 127,279.15

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Solution

The fourth proportional to 234,709.15, 323,898.72 and 127,279.15 is: 175,645.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,709.15 : 323,898.72 = 127,279.15 : x
  2. Step 2: Convert to fraction form
    234,709.15/323,898.72 = 127,279.15/x
  3. Step 3: Cross multiply
    234,709.15x = 323,898.72 × 127,279.15
  4. Step 4: Simplify right side
    234,709.15x = 41,225,553,131.29
  5. Step 5: Solve for x
    x = 41,225,553,131.29/234,709.15
  6. Step 6: Final answer
    x = 175,645.27

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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.