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Finding the Fourth Proportional to 261,086.48, 360,317.16 and 147,910.16

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Solution

The fourth proportional to 261,086.48, 360,317.16 and 147,910.16 is: 204,126.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,086.48 : 360,317.16 = 147,910.16 : x
  2. Step 2: Convert to fraction form
    261,086.48/360,317.16 = 147,910.16/x
  3. Step 3: Cross multiply
    261,086.48x = 360,317.16 × 147,910.16
  4. Step 4: Simplify right side
    261,086.48x = 53,294,568,786.35
  5. Step 5: Solve for x
    x = 53,294,568,786.35/261,086.48
  6. Step 6: Final answer
    x = 204,126.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.