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Finding the Fourth Proportional to 265,803.76, 398,496.36 and 132,615.52

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Solution

The fourth proportional to 265,803.76, 398,496.36 and 132,615.52 is: 198,818.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,803.76 : 398,496.36 = 132,615.52 : x
  2. Step 2: Convert to fraction form
    265,803.76/398,496.36 = 132,615.52/x
  3. Step 3: Cross multiply
    265,803.76x = 398,496.36 × 132,615.52
  4. Step 4: Simplify right side
    265,803.76x = 52,846,801,999.51
  5. Step 5: Solve for x
    x = 52,846,801,999.51/265,803.76
  6. Step 6: Final answer
    x = 198,818.87

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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.