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Finding the Fourth Proportional to 103,432.60, 155,173.91 and 35,954.90

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Solution

The fourth proportional to 103,432.60, 155,173.91 and 35,954.90 is: 53,941.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,432.60 : 155,173.91 = 35,954.90 : x
  2. Step 2: Convert to fraction form
    103,432.60/155,173.91 = 35,954.90/x
  3. Step 3: Cross multiply
    103,432.60x = 155,173.91 × 35,954.90
  4. Step 4: Simplify right side
    103,432.60x = 5,579,261,461.01
  5. Step 5: Solve for x
    x = 5,579,261,461.01/103,432.60
  6. Step 6: Final answer
    x = 53,941.04

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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.