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Finding the Fourth Proportional to 90,279.74, 124,626.28 and 59,671.28

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Solution

The fourth proportional to 90,279.74, 124,626.28 and 59,671.28 is: 82,372.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,279.74 : 124,626.28 = 59,671.28 : x
  2. Step 2: Convert to fraction form
    90,279.74/124,626.28 = 59,671.28/x
  3. Step 3: Cross multiply
    90,279.74x = 124,626.28 × 59,671.28
  4. Step 4: Simplify right side
    90,279.74x = 7,436,609,222.49
  5. Step 5: Solve for x
    x = 7,436,609,222.49/90,279.74
  6. Step 6: Final answer
    x = 82,372.96

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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.