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Finding the Fourth Proportional to 261,532, 392,356.32 and 95,320

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Solution

The fourth proportional to 261,532, 392,356.32 and 95,320 is: 143,001.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,532 : 392,356.32 = 95,320 : x
  2. Step 2: Convert to fraction form
    261,532/392,356.32 = 95,320/x
  3. Step 3: Cross multiply
    261,532x = 392,356.32 × 95,320
  4. Step 4: Simplify right side
    261,532x = 37,399,404,422.40
  5. Step 5: Solve for x
    x = 37,399,404,422.40/261,532
  6. Step 6: Final answer
    x = 143,001.26

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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.