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Finding the Fourth Proportional to 60,482.30, 90,458.17 and 53,865.47

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Solution

The fourth proportional to 60,482.30, 90,458.17 and 53,865.47 is: 80,561.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,482.30 : 90,458.17 = 53,865.47 : x
  2. Step 2: Convert to fraction form
    60,482.30/90,458.17 = 53,865.47/x
  3. Step 3: Cross multiply
    60,482.30x = 90,458.17 × 53,865.47
  4. Step 4: Simplify right side
    60,482.30x = 4,872,571,933.87
  5. Step 5: Solve for x
    x = 4,872,571,933.87/60,482.30
  6. Step 6: Final answer
    x = 80,561.96

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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.