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Finding the Fourth Proportional to 326,110.10, 489,165.15 and 166,677.80

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Solution

The fourth proportional to 326,110.10, 489,165.15 and 166,677.80 is: 250,016.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,110.10 : 489,165.15 = 166,677.80 : x
  2. Step 2: Convert to fraction form
    326,110.10/489,165.15 = 166,677.80/x
  3. Step 3: Cross multiply
    326,110.10x = 489,165.15 × 166,677.80
  4. Step 4: Simplify right side
    326,110.10x = 81,532,971,038.67
  5. Step 5: Solve for x
    x = 81,532,971,038.67/326,110.10
  6. Step 6: Final answer
    x = 250,016.70

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1.5x scale

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.