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Finding the Fourth Proportional to 103,618.90, 154,671.85 and 88,922.26

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Solution

The fourth proportional to 103,618.90, 154,671.85 and 88,922.26 is: 132,734.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,618.90 : 154,671.85 = 88,922.26 : x
  2. Step 2: Convert to fraction form
    103,618.90/154,671.85 = 88,922.26/x
  3. Step 3: Cross multiply
    103,618.90x = 154,671.85 × 88,922.26
  4. Step 4: Simplify right side
    103,618.90x = 13,753,770,460.38
  5. Step 5: Solve for x
    x = 13,753,770,460.38/103,618.90
  6. Step 6: Final answer
    x = 132,734.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.