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Finding the Fourth Proportional to 90,266.50, 124,454.71 and 57,944.10

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Solution

The fourth proportional to 90,266.50, 124,454.71 and 57,944.10 is: 79,890.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,266.50 : 124,454.71 = 57,944.10 : x
  2. Step 2: Convert to fraction form
    90,266.50/124,454.71 = 57,944.10/x
  3. Step 3: Cross multiply
    90,266.50x = 124,454.71 × 57,944.10
  4. Step 4: Simplify right side
    90,266.50x = 7,211,416,161.71
  5. Step 5: Solve for x
    x = 7,211,416,161.71/90,266.50
  6. Step 6: Final answer
    x = 79,890.28

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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.