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Finding the Fourth Proportional to 159,628.78, 239,443.17 and 41,312.08

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Solution

The fourth proportional to 159,628.78, 239,443.17 and 41,312.08 is: 61,968.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,628.78 : 239,443.17 = 41,312.08 : x
  2. Step 2: Convert to fraction form
    159,628.78/239,443.17 = 41,312.08/x
  3. Step 3: Cross multiply
    159,628.78x = 239,443.17 × 41,312.08
  4. Step 4: Simplify right side
    159,628.78x = 9,891,895,394.49
  5. Step 5: Solve for x
    x = 9,891,895,394.49/159,628.78
  6. Step 6: Final answer
    x = 61,968.12

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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.