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Finding the Fourth Proportional to 142,230.66, 213,220.67 and 58,061.54

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Solution

The fourth proportional to 142,230.66, 213,220.67 and 58,061.54 is: 87,041.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,230.66 : 213,220.67 = 58,061.54 : x
  2. Step 2: Convert to fraction form
    142,230.66/213,220.67 = 58,061.54/x
  3. Step 3: Cross multiply
    142,230.66x = 213,220.67 × 58,061.54
  4. Step 4: Simplify right side
    142,230.66x = 12,379,919,103.62
  5. Step 5: Solve for x
    x = 12,379,919,103.62/142,230.66
  6. Step 6: Final answer
    x = 87,041.14

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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.