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Finding the Fourth Proportional to 90,560.88, 124,967.88 and 54,770.58

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Solution

The fourth proportional to 90,560.88, 124,967.88 and 54,770.58 is: 75,579.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,560.88 : 124,967.88 = 54,770.58 : x
  2. Step 2: Convert to fraction form
    90,560.88/124,967.88 = 54,770.58/x
  3. Step 3: Cross multiply
    90,560.88x = 124,967.88 × 54,770.58
  4. Step 4: Simplify right side
    90,560.88x = 6,844,563,268.97
  5. Step 5: Solve for x
    x = 6,844,563,268.97/90,560.88
  6. Step 6: Final answer
    x = 75,579.69

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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.