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Finding the Fourth Proportional to 103,663.01, 155,487.21 and 40,471.26

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Solution

The fourth proportional to 103,663.01, 155,487.21 and 40,471.26 is: 60,704.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,663.01 : 155,487.21 = 40,471.26 : x
  2. Step 2: Convert to fraction form
    103,663.01/155,487.21 = 40,471.26/x
  3. Step 3: Cross multiply
    103,663.01x = 155,487.21 × 40,471.26
  4. Step 4: Simplify right side
    103,663.01x = 6,292,763,302.58
  5. Step 5: Solve for x
    x = 6,292,763,302.58/103,663.01
  6. Step 6: Final answer
    x = 60,704.04

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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.