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Finding the Fourth Proportional to 80,193.76, 119,798.88 and 57,816.16

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Solution

The fourth proportional to 80,193.76, 119,798.88 and 57,816.16 is: 86,369.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,193.76 : 119,798.88 = 57,816.16 : x
  2. Step 2: Convert to fraction form
    80,193.76/119,798.88 = 57,816.16/x
  3. Step 3: Cross multiply
    80,193.76x = 119,798.88 × 57,816.16
  4. Step 4: Simplify right side
    80,193.76x = 6,926,311,213.90
  5. Step 5: Solve for x
    x = 6,926,311,213.90/80,193.76
  6. Step 6: Final answer
    x = 86,369.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.