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Finding the Fourth Proportional to 154,038.60, 231,082.20 and 48,868.20

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Solution

The fourth proportional to 154,038.60, 231,082.20 and 48,868.20 is: 73,310.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,038.60 : 231,082.20 = 48,868.20 : x
  2. Step 2: Convert to fraction form
    154,038.60/231,082.20 = 48,868.20/x
  3. Step 3: Cross multiply
    154,038.60x = 231,082.20 × 48,868.20
  4. Step 4: Simplify right side
    154,038.60x = 11,292,571,166.04
  5. Step 5: Solve for x
    x = 11,292,571,166.04/154,038.60
  6. Step 6: Final answer
    x = 73,310.01

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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.