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Finding the Fourth Proportional to 75,331.44, 103,918.12 and 44,686.71

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Solution

The fourth proportional to 75,331.44, 103,918.12 and 44,686.71 is: 61,644.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,331.44 : 103,918.12 = 44,686.71 : x
  2. Step 2: Convert to fraction form
    75,331.44/103,918.12 = 44,686.71/x
  3. Step 3: Cross multiply
    75,331.44x = 103,918.12 × 44,686.71
  4. Step 4: Simplify right side
    75,331.44x = 4,643,758,780.47
  5. Step 5: Solve for x
    x = 4,643,758,780.47/75,331.44
  6. Step 6: Final answer
    x = 61,644.36

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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.