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Finding the Fourth Proportional to 261,642.20, 392,492.10 and 95,466.20

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Solution

The fourth proportional to 261,642.20, 392,492.10 and 95,466.20 is: 143,209.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,642.20 : 392,492.10 = 95,466.20 : x
  2. Step 2: Convert to fraction form
    261,642.20/392,492.10 = 95,466.20/x
  3. Step 3: Cross multiply
    261,642.20x = 392,492.10 × 95,466.20
  4. Step 4: Simplify right side
    261,642.20x = 37,469,729,317.02
  5. Step 5: Solve for x
    x = 37,469,729,317.02/261,642.20
  6. Step 6: Final answer
    x = 143,209.81

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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.