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Finding the Fourth Proportional to 243,177.69, 335,655.78 and 141,226.23

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Solution

The fourth proportional to 243,177.69, 335,655.78 and 141,226.23 is: 194,933.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,177.69 : 335,655.78 = 141,226.23 : x
  2. Step 2: Convert to fraction form
    243,177.69/335,655.78 = 141,226.23/x
  3. Step 3: Cross multiply
    243,177.69x = 335,655.78 × 141,226.23
  4. Step 4: Simplify right side
    243,177.69x = 47,403,400,387.11
  5. Step 5: Solve for x
    x = 47,403,400,387.11/243,177.69
  6. Step 6: Final answer
    x = 194,933.18

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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.