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Finding the Fourth Proportional to 423,616.33, 635,547.50 and 170,766.34

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Solution

The fourth proportional to 423,616.33, 635,547.50 and 170,766.34 is: 256,199.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,616.33 : 635,547.50 = 170,766.34 : x
  2. Step 2: Convert to fraction form
    423,616.33/635,547.50 = 170,766.34/x
  3. Step 3: Cross multiply
    423,616.33x = 635,547.50 × 170,766.34
  4. Step 4: Simplify right side
    423,616.33x = 108,530,120,471.15
  5. Step 5: Solve for x
    x = 108,530,120,471.15/423,616.33
  6. Step 6: Final answer
    x = 256,199.10

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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.