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Finding the Fourth Proportional to 89,016.40, 133,351.80 and 49,502.80

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Solution

The fourth proportional to 89,016.40, 133,351.80 and 49,502.80 is: 74,158.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,016.40 : 133,351.80 = 49,502.80 : x
  2. Step 2: Convert to fraction form
    89,016.40/133,351.80 = 49,502.80/x
  3. Step 3: Cross multiply
    89,016.40x = 133,351.80 × 49,502.80
  4. Step 4: Simplify right side
    89,016.40x = 6,601,287,485.04
  5. Step 5: Solve for x
    x = 6,601,287,485.04/89,016.40
  6. Step 6: Final answer
    x = 74,158.10

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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.