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Finding the Fourth Proportional to 326,400.96, 489,207.72 and 168,543.36

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Solution

The fourth proportional to 326,400.96, 489,207.72 and 168,543.36 is: 252,611.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,400.96 : 489,207.72 = 168,543.36 : x
  2. Step 2: Convert to fraction form
    326,400.96/489,207.72 = 168,543.36/x
  3. Step 3: Cross multiply
    326,400.96x = 489,207.72 × 168,543.36
  4. Step 4: Simplify right side
    326,400.96x = 82,452,712,866.74
  5. Step 5: Solve for x
    x = 82,452,712,866.74/326,400.96
  6. Step 6: Final answer
    x = 252,611.74

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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.