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Finding the Fourth Proportional to 392,913.32, 588,877.22 and 168,009.76

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Solution

The fourth proportional to 392,913.32, 588,877.22 and 168,009.76 is: 251,803.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,913.32 : 588,877.22 = 168,009.76 : x
  2. Step 2: Convert to fraction form
    392,913.32/588,877.22 = 168,009.76/x
  3. Step 3: Cross multiply
    392,913.32x = 588,877.22 × 168,009.76
  4. Step 4: Simplify right side
    392,913.32x = 98,937,120,401.67
  5. Step 5: Solve for x
    x = 98,937,120,401.67/392,913.32
  6. Step 6: Final answer
    x = 251,803.94

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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.