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Finding the Fourth Proportional to 52,560.68, 78,799.16 and 30,348.86

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Solution

The fourth proportional to 52,560.68, 78,799.16 and 30,348.86 is: 45,499.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,560.68 : 78,799.16 = 30,348.86 : x
  2. Step 2: Convert to fraction form
    52,560.68/78,799.16 = 30,348.86/x
  3. Step 3: Cross multiply
    52,560.68x = 78,799.16 × 30,348.86
  4. Step 4: Simplify right side
    52,560.68x = 2,391,464,674.96
  5. Step 5: Solve for x
    x = 2,391,464,674.96/52,560.68
  6. Step 6: Final answer
    x = 45,499.12

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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.