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Finding the Fourth Proportional to 101,145.60, 151,718.40 and 34,587.90

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Solution

The fourth proportional to 101,145.60, 151,718.40 and 34,587.90 is: 51,881.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,145.60 : 151,718.40 = 34,587.90 : x
  2. Step 2: Convert to fraction form
    101,145.60/151,718.40 = 34,587.90/x
  3. Step 3: Cross multiply
    101,145.60x = 151,718.40 × 34,587.90
  4. Step 4: Simplify right side
    101,145.60x = 5,247,620,847.36
  5. Step 5: Solve for x
    x = 5,247,620,847.36/101,145.60
  6. Step 6: Final answer
    x = 51,881.85

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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.