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Finding the Fourth Proportional to 74,839.69, 103,278.90 and 41,305.69

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Solution

The fourth proportional to 74,839.69, 103,278.90 and 41,305.69 is: 57,001.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,839.69 : 103,278.90 = 41,305.69 : x
  2. Step 2: Convert to fraction form
    74,839.69/103,278.90 = 41,305.69/x
  3. Step 3: Cross multiply
    74,839.69x = 103,278.90 × 41,305.69
  4. Step 4: Simplify right side
    74,839.69x = 4,266,006,123.64
  5. Step 5: Solve for x
    x = 4,266,006,123.64/74,839.69
  6. Step 6: Final answer
    x = 57,001.92

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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.