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Finding the Fourth Proportional to 144,061.60, 215,919.60 and 73,904.80

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Solution

The fourth proportional to 144,061.60, 215,919.60 and 73,904.80 is: 110,768.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,061.60 : 215,919.60 = 73,904.80 : x
  2. Step 2: Convert to fraction form
    144,061.60/215,919.60 = 73,904.80/x
  3. Step 3: Cross multiply
    144,061.60x = 215,919.60 × 73,904.80
  4. Step 4: Simplify right side
    144,061.60x = 15,957,494,854.08
  5. Step 5: Solve for x
    x = 15,957,494,854.08/144,061.60
  6. Step 6: Final answer
    x = 110,768.55

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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.