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Finding the Fourth Proportional to 104,463.92, 156,365.36 and 66,973.92

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Solution

The fourth proportional to 104,463.92, 156,365.36 and 66,973.92 is: 100,248.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,463.92 : 156,365.36 = 66,973.92 : x
  2. Step 2: Convert to fraction form
    104,463.92/156,365.36 = 66,973.92/x
  3. Step 3: Cross multiply
    104,463.92x = 156,365.36 × 66,973.92
  4. Step 4: Simplify right side
    104,463.92x = 10,472,401,111.41
  5. Step 5: Solve for x
    x = 10,472,401,111.41/104,463.92
  6. Step 6: Final answer
    x = 100,248.98

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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.