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Finding the Fourth Proportional to 125,433.55, 188,156.54 and 50,543.68

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Solution

The fourth proportional to 125,433.55, 188,156.54 and 50,543.68 is: 75,818.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,433.55 : 188,156.54 = 50,543.68 : x
  2. Step 2: Convert to fraction form
    125,433.55/188,156.54 = 50,543.68/x
  3. Step 3: Cross multiply
    125,433.55x = 188,156.54 × 50,543.68
  4. Step 4: Simplify right side
    125,433.55x = 9,510,123,603.64
  5. Step 5: Solve for x
    x = 9,510,123,603.64/125,433.55
  6. Step 6: Final answer
    x = 75,818.02

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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.