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Finding the Fourth Proportional to 83,442.94, 115,151.51 and 45,202.88

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Solution

The fourth proportional to 83,442.94, 115,151.51 and 45,202.88 is: 62,380.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,442.94 : 115,151.51 = 45,202.88 : x
  2. Step 2: Convert to fraction form
    83,442.94/115,151.51 = 45,202.88/x
  3. Step 3: Cross multiply
    83,442.94x = 115,151.51 × 45,202.88
  4. Step 4: Simplify right side
    83,442.94x = 5,205,179,888.35
  5. Step 5: Solve for x
    x = 5,205,179,888.35/83,442.94
  6. Step 6: Final answer
    x = 62,380.11

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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.