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Finding the Fourth Proportional to 90,157.64, 124,375.65 and 58,336.82

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Solution

The fourth proportional to 90,157.64, 124,375.65 and 58,336.82 is: 80,477.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,157.64 : 124,375.65 = 58,336.82 : x
  2. Step 2: Convert to fraction form
    90,157.64/124,375.65 = 58,336.82/x
  3. Step 3: Cross multiply
    90,157.64x = 124,375.65 × 58,336.82
  4. Step 4: Simplify right side
    90,157.64x = 7,255,679,906.43
  5. Step 5: Solve for x
    x = 7,255,679,906.43/90,157.64
  6. Step 6: Final answer
    x = 80,477.70

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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.