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Finding the Fourth Proportional to 261,358.64, 392,029.32 and 113,614.64

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Solution

The fourth proportional to 261,358.64, 392,029.32 and 113,614.64 is: 170,418.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,358.64 : 392,029.32 = 113,614.64 : x
  2. Step 2: Convert to fraction form
    261,358.64/392,029.32 = 113,614.64/x
  3. Step 3: Cross multiply
    261,358.64x = 392,029.32 × 113,614.64
  4. Step 4: Simplify right side
    261,358.64x = 44,540,270,061.24
  5. Step 5: Solve for x
    x = 44,540,270,061.24/261,358.64
  6. Step 6: Final answer
    x = 170,418.20

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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.