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Finding the Fourth Proportional to 73,235.70, 109,853.55 and 60,769.80

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Solution

The fourth proportional to 73,235.70, 109,853.55 and 60,769.80 is: 91,154.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,235.70 : 109,853.55 = 60,769.80 : x
  2. Step 2: Convert to fraction form
    73,235.70/109,853.55 = 60,769.80/x
  3. Step 3: Cross multiply
    73,235.70x = 109,853.55 × 60,769.80
  4. Step 4: Simplify right side
    73,235.70x = 6,675,778,262.79
  5. Step 5: Solve for x
    x = 6,675,778,262.79/73,235.70
  6. Step 6: Final answer
    x = 91,154.70

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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.