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Finding the Fourth Proportional to 106,957.80, 160,436.70 and 101,255.40

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Solution

The fourth proportional to 106,957.80, 160,436.70 and 101,255.40 is: 151,883.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,957.80 : 160,436.70 = 101,255.40 : x
  2. Step 2: Convert to fraction form
    106,957.80/160,436.70 = 101,255.40/x
  3. Step 3: Cross multiply
    106,957.80x = 160,436.70 × 101,255.40
  4. Step 4: Simplify right side
    106,957.80x = 16,245,082,233.18
  5. Step 5: Solve for x
    x = 16,245,082,233.18/106,957.80
  6. Step 6: Final answer
    x = 151,883.10

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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.