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Finding the Fourth Proportional to 101,015.20, 151,508.40 and 34,458.40

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Solution

The fourth proportional to 101,015.20, 151,508.40 and 34,458.40 is: 51,682.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,015.20 : 151,508.40 = 34,458.40 : x
  2. Step 2: Convert to fraction form
    101,015.20/151,508.40 = 34,458.40/x
  3. Step 3: Cross multiply
    101,015.20x = 151,508.40 × 34,458.40
  4. Step 4: Simplify right side
    101,015.20x = 5,220,737,050.56
  5. Step 5: Solve for x
    x = 5,220,737,050.56/101,015.20
  6. Step 6: Final answer
    x = 51,682.69

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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.