Home / 351,437.20-527,151.04-85,200

Finding the Fourth Proportional to 351,437.20, 527,151.04 and 85,200

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Solution

The fourth proportional to 351,437.20, 527,151.04 and 85,200 is: 127,798.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,437.20 : 527,151.04 = 85,200 : x
  2. Step 2: Convert to fraction form
    351,437.20/527,151.04 = 85,200/x
  3. Step 3: Cross multiply
    351,437.20x = 527,151.04 × 85,200
  4. Step 4: Simplify right side
    351,437.20x = 44,913,268,608
  5. Step 5: Solve for x
    x = 44,913,268,608/351,437.20
  6. Step 6: Final answer
    x = 127,798.85

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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.