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Finding the Fourth Proportional to 103,954.10, 155,603.10 and 100,673.60

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Solution

The fourth proportional to 103,954.10, 155,603.10 and 100,673.60 is: 150,692.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,954.10 : 155,603.10 = 100,673.60 : x
  2. Step 2: Convert to fraction form
    103,954.10/155,603.10 = 100,673.60/x
  3. Step 3: Cross multiply
    103,954.10x = 155,603.10 × 100,673.60
  4. Step 4: Simplify right side
    103,954.10x = 15,665,124,248.16
  5. Step 5: Solve for x
    x = 15,665,124,248.16/103,954.10
  6. Step 6: Final answer
    x = 150,692.70

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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.