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Finding the Fourth Proportional to 93,442, 140,206.74 and 40,866.52

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Solution

The fourth proportional to 93,442, 140,206.74 and 40,866.52 is: 61,318.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,442 : 140,206.74 = 40,866.52 : x
  2. Step 2: Convert to fraction form
    93,442/140,206.74 = 40,866.52/x
  3. Step 3: Cross multiply
    93,442x = 140,206.74 × 40,866.52
  4. Step 4: Simplify right side
    93,442x = 5,729,761,544.34
  5. Step 5: Solve for x
    x = 5,729,761,544.34/93,442
  6. Step 6: Final answer
    x = 61,318.91

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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.