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Finding the Fourth Proportional to 207,593.81, 286,500.62 and 127,074.54

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Solution

The fourth proportional to 207,593.81, 286,500.62 and 127,074.54 is: 175,375.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,593.81 : 286,500.62 = 127,074.54 : x
  2. Step 2: Convert to fraction form
    207,593.81/286,500.62 = 127,074.54/x
  3. Step 3: Cross multiply
    207,593.81x = 286,500.62 × 127,074.54
  4. Step 4: Simplify right side
    207,593.81x = 36,406,934,496.21
  5. Step 5: Solve for x
    x = 36,406,934,496.21/207,593.81
  6. Step 6: Final answer
    x = 175,375.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.