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Finding the Fourth Proportional to 60,558.70, 90,801.60 and 31,034.20

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Solution

The fourth proportional to 60,558.70, 90,801.60 and 31,034.20 is: 46,532.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,558.70 : 90,801.60 = 31,034.20 : x
  2. Step 2: Convert to fraction form
    60,558.70/90,801.60 = 31,034.20/x
  3. Step 3: Cross multiply
    60,558.70x = 90,801.60 × 31,034.20
  4. Step 4: Simplify right side
    60,558.70x = 2,817,955,014.72
  5. Step 5: Solve for x
    x = 2,817,955,014.72/60,558.70
  6. Step 6: Final answer
    x = 46,532.62

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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.