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Finding the Fourth Proportional to 253,930.51, 380,776.38 and 93,895.87

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Solution

The fourth proportional to 253,930.51, 380,776.38 and 93,895.87 is: 140,799.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,930.51 : 380,776.38 = 93,895.87 : x
  2. Step 2: Convert to fraction form
    253,930.51/380,776.38 = 93,895.87/x
  3. Step 3: Cross multiply
    253,930.51x = 380,776.38 × 93,895.87
  4. Step 4: Simplify right side
    253,930.51x = 35,753,329,475.55
  5. Step 5: Solve for x
    x = 35,753,329,475.55/253,930.51
  6. Step 6: Final answer
    x = 140,799.66

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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.