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Finding the Fourth Proportional to 135,572.66, 203,320.10 and 52,447.22

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Solution

The fourth proportional to 135,572.66, 203,320.10 and 52,447.22 is: 78,655.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,572.66 : 203,320.10 = 52,447.22 : x
  2. Step 2: Convert to fraction form
    135,572.66/203,320.10 = 52,447.22/x
  3. Step 3: Cross multiply
    135,572.66x = 203,320.10 × 52,447.22
  4. Step 4: Simplify right side
    135,572.66x = 10,663,574,015.12
  5. Step 5: Solve for x
    x = 10,663,574,015.12/135,572.66
  6. Step 6: Final answer
    x = 78,655.79

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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.