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Finding the Fourth Proportional to 103,632.73, 155,531.10 and 40,483.10

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Solution

The fourth proportional to 103,632.73, 155,531.10 and 40,483.10 is: 60,756.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,632.73 : 155,531.10 = 40,483.10 : x
  2. Step 2: Convert to fraction form
    103,632.73/155,531.10 = 40,483.10/x
  3. Step 3: Cross multiply
    103,632.73x = 155,531.10 × 40,483.10
  4. Step 4: Simplify right side
    103,632.73x = 6,296,381,074.41
  5. Step 5: Solve for x
    x = 6,296,381,074.41/103,632.73
  6. Step 6: Final answer
    x = 60,756.68

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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.