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Finding the Fourth Proportional to 103,614.40, 155,344.80 and 44,401.60

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Solution

The fourth proportional to 103,614.40, 155,344.80 and 44,401.60 is: 66,569.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,614.40 : 155,344.80 = 44,401.60 : x
  2. Step 2: Convert to fraction form
    103,614.40/155,344.80 = 44,401.60/x
  3. Step 3: Cross multiply
    103,614.40x = 155,344.80 × 44,401.60
  4. Step 4: Simplify right side
    103,614.40x = 6,897,557,671.68
  5. Step 5: Solve for x
    x = 6,897,557,671.68/103,614.40
  6. Step 6: Final answer
    x = 66,569.49

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1.5x scale

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.