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Finding the Fourth Proportional to 89,235.48, 123,144.12 and 48,948.44

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Solution

The fourth proportional to 89,235.48, 123,144.12 and 48,948.44 is: 67,548.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,235.48 : 123,144.12 = 48,948.44 : x
  2. Step 2: Convert to fraction form
    89,235.48/123,144.12 = 48,948.44/x
  3. Step 3: Cross multiply
    89,235.48x = 123,144.12 × 48,948.44
  4. Step 4: Simplify right side
    89,235.48x = 6,027,712,569.17
  5. Step 5: Solve for x
    x = 6,027,712,569.17/89,235.48
  6. Step 6: Final answer
    x = 67,548.39

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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.