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Finding the Fourth Proportional to 100,552.77, 138,827.82 and 62,352.90

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Solution

The fourth proportional to 100,552.77, 138,827.82 and 62,352.90 is: 86,087.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,552.77 : 138,827.82 = 62,352.90 : x
  2. Step 2: Convert to fraction form
    100,552.77/138,827.82 = 62,352.90/x
  3. Step 3: Cross multiply
    100,552.77x = 138,827.82 × 62,352.90
  4. Step 4: Simplify right side
    100,552.77x = 8,656,317,177.68
  5. Step 5: Solve for x
    x = 8,656,317,177.68/100,552.77
  6. Step 6: Final answer
    x = 86,087.31

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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.