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Finding the Fourth Proportional to 60,816.20, 91,202.70 and 42,096.20

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Solution

The fourth proportional to 60,816.20, 91,202.70 and 42,096.20 is: 63,129.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,816.20 : 91,202.70 = 42,096.20 : x
  2. Step 2: Convert to fraction form
    60,816.20/91,202.70 = 42,096.20/x
  3. Step 3: Cross multiply
    60,816.20x = 91,202.70 × 42,096.20
  4. Step 4: Simplify right side
    60,816.20x = 3,839,287,099.74
  5. Step 5: Solve for x
    x = 3,839,287,099.74/60,816.20
  6. Step 6: Final answer
    x = 63,129.35

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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.