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Finding the Fourth Proportional to 234,206.88, 323,243.40 and 143,612.88

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Solution

The fourth proportional to 234,206.88, 323,243.40 and 143,612.88 is: 198,209.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,206.88 : 323,243.40 = 143,612.88 : x
  2. Step 2: Convert to fraction form
    234,206.88/323,243.40 = 143,612.88/x
  3. Step 3: Cross multiply
    234,206.88x = 323,243.40 × 143,612.88
  4. Step 4: Simplify right side
    234,206.88x = 46,421,915,614.99
  5. Step 5: Solve for x
    x = 46,421,915,614.99/234,206.88
  6. Step 6: Final answer
    x = 198,209.02

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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.