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Finding the Fourth Proportional to 168,599.87, 252,681.80 and 126,146.87

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Solution

The fourth proportional to 168,599.87, 252,681.80 and 126,146.87 is: 189,057.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,599.87 : 252,681.80 = 126,146.87 : x
  2. Step 2: Convert to fraction form
    168,599.87/252,681.80 = 126,146.87/x
  3. Step 3: Cross multiply
    168,599.87x = 252,681.80 × 126,146.87
  4. Step 4: Simplify right side
    168,599.87x = 31,875,018,176.94
  5. Step 5: Solve for x
    x = 31,875,018,176.94/168,599.87
  6. Step 6: Final answer
    x = 189,057.19

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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.