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Finding the Fourth Proportional to 107,236.76, 147,993.72 and 61,923.20

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Solution

The fourth proportional to 107,236.76, 147,993.72 and 61,923.20 is: 85,458.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,236.76 : 147,993.72 = 61,923.20 : x
  2. Step 2: Convert to fraction form
    107,236.76/147,993.72 = 61,923.20/x
  3. Step 3: Cross multiply
    107,236.76x = 147,993.72 × 61,923.20
  4. Step 4: Simplify right side
    107,236.76x = 9,164,244,722.30
  5. Step 5: Solve for x
    x = 9,164,244,722.30/107,236.76
  6. Step 6: Final answer
    x = 85,458.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.