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Finding the Fourth Proportional to 261,959.10, 393,111.45 and 95,747.10

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Solution

The fourth proportional to 261,959.10, 393,111.45 and 95,747.10 is: 143,683.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,959.10 : 393,111.45 = 95,747.10 : x
  2. Step 2: Convert to fraction form
    261,959.10/393,111.45 = 95,747.10/x
  3. Step 3: Cross multiply
    261,959.10x = 393,111.45 × 95,747.10
  4. Step 4: Simplify right side
    261,959.10x = 37,639,281,314.30
  5. Step 5: Solve for x
    x = 37,639,281,314.30/261,959.10
  6. Step 6: Final answer
    x = 143,683.81

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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.