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Finding the Fourth Proportional to 103,954.60, 155,931.90 and 96,081.40

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Solution

The fourth proportional to 103,954.60, 155,931.90 and 96,081.40 is: 144,122.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,954.60 : 155,931.90 = 96,081.40 : x
  2. Step 2: Convert to fraction form
    103,954.60/155,931.90 = 96,081.40/x
  3. Step 3: Cross multiply
    103,954.60x = 155,931.90 × 96,081.40
  4. Step 4: Simplify right side
    103,954.60x = 14,982,155,256.66
  5. Step 5: Solve for x
    x = 14,982,155,256.66/103,954.60
  6. Step 6: Final answer
    x = 144,122.10

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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.