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Finding the Fourth Proportional to 54,598.55, 81,909.45 and 30,917.18

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Solution

The fourth proportional to 54,598.55, 81,909.45 and 30,917.18 is: 46,382.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,598.55 : 81,909.45 = 30,917.18 : x
  2. Step 2: Convert to fraction form
    54,598.55/81,909.45 = 30,917.18/x
  3. Step 3: Cross multiply
    54,598.55x = 81,909.45 × 30,917.18
  4. Step 4: Simplify right side
    54,598.55x = 2,532,408,799.80
  5. Step 5: Solve for x
    x = 2,532,408,799.80/54,598.55
  6. Step 6: Final answer
    x = 46,382.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.