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Finding the Fourth Proportional to 89,872.84, 124,022.46 and 49,590.40

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Solution

The fourth proportional to 89,872.84, 124,022.46 and 49,590.40 is: 68,433.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,872.84 : 124,022.46 = 49,590.40 : x
  2. Step 2: Convert to fraction form
    89,872.84/124,022.46 = 49,590.40/x
  3. Step 3: Cross multiply
    89,872.84x = 124,022.46 × 49,590.40
  4. Step 4: Simplify right side
    89,872.84x = 6,150,323,400.38
  5. Step 5: Solve for x
    x = 6,150,323,400.38/89,872.84
  6. Step 6: Final answer
    x = 68,433.62

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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.