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Finding the Fourth Proportional to 261,717.66, 392,693.10 and 95,466.78

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Solution

The fourth proportional to 261,717.66, 392,693.10 and 95,466.78 is: 143,242.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,717.66 : 392,693.10 = 95,466.78 : x
  2. Step 2: Convert to fraction form
    261,717.66/392,693.10 = 95,466.78/x
  3. Step 3: Cross multiply
    261,717.66x = 392,693.10 × 95,466.78
  4. Step 4: Simplify right side
    261,717.66x = 37,489,145,785.22
  5. Step 5: Solve for x
    x = 37,489,145,785.22/261,717.66
  6. Step 6: Final answer
    x = 143,242.71

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1.5x scale

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.