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Finding the Fourth Proportional to 142,570.80, 213,683.40 and 63,601.20

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Solution

The fourth proportional to 142,570.80, 213,683.40 and 63,601.20 is: 95,324.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,570.80 : 213,683.40 = 63,601.20 : x
  2. Step 2: Convert to fraction form
    142,570.80/213,683.40 = 63,601.20/x
  3. Step 3: Cross multiply
    142,570.80x = 213,683.40 × 63,601.20
  4. Step 4: Simplify right side
    142,570.80x = 13,590,520,660.08
  5. Step 5: Solve for x
    x = 13,590,520,660.08/142,570.80
  6. Step 6: Final answer
    x = 95,324.71

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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.