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Finding the Fourth Proportional to 102,394.80, 153,592.20 and 101,082.60

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Solution

The fourth proportional to 102,394.80, 153,592.20 and 101,082.60 is: 151,623.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,394.80 : 153,592.20 = 101,082.60 : x
  2. Step 2: Convert to fraction form
    102,394.80/153,592.20 = 101,082.60/x
  3. Step 3: Cross multiply
    102,394.80x = 153,592.20 × 101,082.60
  4. Step 4: Simplify right side
    102,394.80x = 15,525,498,915.72
  5. Step 5: Solve for x
    x = 15,525,498,915.72/102,394.80
  6. Step 6: Final answer
    x = 151,623.90

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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.