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Finding the Fourth Proportional to 80,111.84, 119,946.29 and 60,330.42

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Solution

The fourth proportional to 80,111.84, 119,946.29 and 60,330.42 is: 90,328.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,111.84 : 119,946.29 = 60,330.42 : x
  2. Step 2: Convert to fraction form
    80,111.84/119,946.29 = 60,330.42/x
  3. Step 3: Cross multiply
    80,111.84x = 119,946.29 × 60,330.42
  4. Step 4: Simplify right side
    80,111.84x = 7,236,409,751.49
  5. Step 5: Solve for x
    x = 7,236,409,751.49/80,111.84
  6. Step 6: Final answer
    x = 90,328.85

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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.