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Finding the Fourth Proportional to 402,663.64, 603,552.39 and 165,877.18

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Solution

The fourth proportional to 402,663.64, 603,552.39 and 165,877.18 is: 248,633.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,663.64 : 603,552.39 = 165,877.18 : x
  2. Step 2: Convert to fraction form
    402,663.64/603,552.39 = 165,877.18/x
  3. Step 3: Cross multiply
    402,663.64x = 603,552.39 × 165,877.18
  4. Step 4: Simplify right side
    402,663.64x = 100,115,568,435.46
  5. Step 5: Solve for x
    x = 100,115,568,435.46/402,663.64
  6. Step 6: Final answer
    x = 248,633.25

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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.