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Finding the Fourth Proportional to 89,230.56, 123,139.80 and 48,948.24

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Solution

The fourth proportional to 89,230.56, 123,139.80 and 48,948.24 is: 67,549.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,230.56 : 123,139.80 = 48,948.24 : x
  2. Step 2: Convert to fraction form
    89,230.56/123,139.80 = 48,948.24/x
  3. Step 3: Cross multiply
    89,230.56x = 123,139.80 × 48,948.24
  4. Step 4: Simplify right side
    89,230.56x = 6,027,476,483.95
  5. Step 5: Solve for x
    x = 6,027,476,483.95/89,230.56
  6. Step 6: Final answer
    x = 67,549.46

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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.