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Finding the Fourth Proportional to 243,434.55, 335,882.11 and 141,399.38

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Solution

The fourth proportional to 243,434.55, 335,882.11 and 141,399.38 is: 195,097.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,434.55 : 335,882.11 = 141,399.38 : x
  2. Step 2: Convert to fraction form
    243,434.55/335,882.11 = 141,399.38/x
  3. Step 3: Cross multiply
    243,434.55x = 335,882.11 × 141,399.38
  4. Step 4: Simplify right side
    243,434.55x = 47,493,521,400.09
  5. Step 5: Solve for x
    x = 47,493,521,400.09/243,434.55
  6. Step 6: Final answer
    x = 195,097.70

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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.