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Finding the Fourth Proportional to 73,478.29, 110,248.64 and 40,159.42

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Solution

The fourth proportional to 73,478.29, 110,248.64 and 40,159.42 is: 60,256.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,478.29 : 110,248.64 = 40,159.42 : x
  2. Step 2: Convert to fraction form
    73,478.29/110,248.64 = 40,159.42/x
  3. Step 3: Cross multiply
    73,478.29x = 110,248.64 × 40,159.42
  4. Step 4: Simplify right side
    73,478.29x = 4,427,521,438.19
  5. Step 5: Solve for x
    x = 4,427,521,438.19/73,478.29
  6. Step 6: Final answer
    x = 60,256.19

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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.