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Finding the Fourth Proportional to 313,508.52, 432,646.92 and 170,268.66

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Solution

The fourth proportional to 313,508.52, 432,646.92 and 170,268.66 is: 234,973.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,508.52 : 432,646.92 = 170,268.66 : x
  2. Step 2: Convert to fraction form
    313,508.52/432,646.92 = 170,268.66/x
  3. Step 3: Cross multiply
    313,508.52x = 432,646.92 × 170,268.66
  4. Step 4: Simplify right side
    313,508.52x = 73,666,211,321.53
  5. Step 5: Solve for x
    x = 73,666,211,321.53/313,508.52
  6. Step 6: Final answer
    x = 234,973.55

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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.