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Finding the Fourth Proportional to 75,033.51, 103,531.89 and 42,767.49

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Solution

The fourth proportional to 75,033.51, 103,531.89 and 42,767.49 is: 59,010.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,033.51 : 103,531.89 = 42,767.49 : x
  2. Step 2: Convert to fraction form
    75,033.51/103,531.89 = 42,767.49/x
  3. Step 3: Cross multiply
    75,033.51x = 103,531.89 × 42,767.49
  4. Step 4: Simplify right side
    75,033.51x = 4,427,799,070.26
  5. Step 5: Solve for x
    x = 4,427,799,070.26/75,033.51
  6. Step 6: Final answer
    x = 59,010.95

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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.