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Finding the Fourth Proportional to 103,671.93, 155,409.37 and 40,532.53

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Solution

The fourth proportional to 103,671.93, 155,409.37 and 40,532.53 is: 60,760.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,671.93 : 155,409.37 = 40,532.53 : x
  2. Step 2: Convert to fraction form
    103,671.93/155,409.37 = 40,532.53/x
  3. Step 3: Cross multiply
    103,671.93x = 155,409.37 × 40,532.53
  4. Step 4: Simplify right side
    103,671.93x = 6,299,134,951.81
  5. Step 5: Solve for x
    x = 6,299,134,951.81/103,671.93
  6. Step 6: Final answer
    x = 60,760.27

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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.