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Finding the Fourth Proportional to 123,002.60, 184,503.90 and 112,116.20

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Solution

The fourth proportional to 123,002.60, 184,503.90 and 112,116.20 is: 168,174.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,002.60 : 184,503.90 = 112,116.20 : x
  2. Step 2: Convert to fraction form
    123,002.60/184,503.90 = 112,116.20/x
  3. Step 3: Cross multiply
    123,002.60x = 184,503.90 × 112,116.20
  4. Step 4: Simplify right side
    123,002.60x = 20,685,876,153.18
  5. Step 5: Solve for x
    x = 20,685,876,153.18/123,002.60
  6. Step 6: Final answer
    x = 168,174.30

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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.