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Finding the Fourth Proportional to 155,859.68, 233,705.68 and 80,793.74

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Solution

The fourth proportional to 155,859.68, 233,705.68 and 80,793.74 is: 121,147.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,859.68 : 233,705.68 = 80,793.74 : x
  2. Step 2: Convert to fraction form
    155,859.68/233,705.68 = 80,793.74/x
  3. Step 3: Cross multiply
    155,859.68x = 233,705.68 × 80,793.74
  4. Step 4: Simplify right side
    155,859.68x = 18,881,956,328.72
  5. Step 5: Solve for x
    x = 18,881,956,328.72/155,859.68
  6. Step 6: Final answer
    x = 121,147.15

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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.