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Finding the Fourth Proportional to 92,030.20, 137,964.30 and 62,351.80

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Solution

The fourth proportional to 92,030.20, 137,964.30 and 62,351.80 is: 93,472.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,030.20 : 137,964.30 = 62,351.80 : x
  2. Step 2: Convert to fraction form
    92,030.20/137,964.30 = 62,351.80/x
  3. Step 3: Cross multiply
    92,030.20x = 137,964.30 × 62,351.80
  4. Step 4: Simplify right side
    92,030.20x = 8,602,322,440.74
  5. Step 5: Solve for x
    x = 8,602,322,440.74/92,030.20
  6. Step 6: Final answer
    x = 93,472.82

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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.