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Finding the Fourth Proportional to 89,857.60, 124,003.13 and 49,573.87

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Solution

The fourth proportional to 89,857.60, 124,003.13 and 49,573.87 is: 68,411.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,857.60 : 124,003.13 = 49,573.87 : x
  2. Step 2: Convert to fraction form
    89,857.60/124,003.13 = 49,573.87/x
  3. Step 3: Cross multiply
    89,857.60x = 124,003.13 × 49,573.87
  4. Step 4: Simplify right side
    89,857.60x = 6,147,315,046.21
  5. Step 5: Solve for x
    x = 6,147,315,046.21/89,857.60
  6. Step 6: Final answer
    x = 68,411.74

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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.