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Finding the Fourth Proportional to 234,357.21, 323,411.13 and 126,924.75

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Solution

The fourth proportional to 234,357.21, 323,411.13 and 126,924.75 is: 175,155.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,357.21 : 323,411.13 = 126,924.75 : x
  2. Step 2: Convert to fraction form
    234,357.21/323,411.13 = 126,924.75/x
  3. Step 3: Cross multiply
    234,357.21x = 323,411.13 × 126,924.75
  4. Step 4: Simplify right side
    234,357.21x = 41,048,876,822.47
  5. Step 5: Solve for x
    x = 41,048,876,822.47/234,357.21
  6. Step 6: Final answer
    x = 175,155.17

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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.