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Finding the Fourth Proportional to 234,709.16, 323,898.72 and 127,279.16

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Solution

The fourth proportional to 234,709.16, 323,898.72 and 127,279.16 is: 175,645.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,709.16 : 323,898.72 = 127,279.16 : x
  2. Step 2: Convert to fraction form
    234,709.16/323,898.72 = 127,279.16/x
  3. Step 3: Cross multiply
    234,709.16x = 323,898.72 × 127,279.16
  4. Step 4: Simplify right side
    234,709.16x = 41,225,556,370.28
  5. Step 5: Solve for x
    x = 41,225,556,370.28/234,709.16
  6. Step 6: Final answer
    x = 175,645.28

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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.