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Finding the Fourth Proportional to 103,615.78, 155,451.03 and 37,062.58

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Solution

The fourth proportional to 103,615.78, 155,451.03 and 37,062.58 is: 55,603.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,615.78 : 155,451.03 = 37,062.58 : x
  2. Step 2: Convert to fraction form
    103,615.78/155,451.03 = 37,062.58/x
  3. Step 3: Cross multiply
    103,615.78x = 155,451.03 × 37,062.58
  4. Step 4: Simplify right side
    103,615.78x = 5,761,416,235.46
  5. Step 5: Solve for x
    x = 5,761,416,235.46/103,615.78
  6. Step 6: Final answer
    x = 55,603.66

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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.