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Finding the Fourth Proportional to 110,657.20, 166,039.80 and 51,462.40

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Solution

The fourth proportional to 110,657.20, 166,039.80 and 51,462.40 is: 77,218.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,657.20 : 166,039.80 = 51,462.40 : x
  2. Step 2: Convert to fraction form
    110,657.20/166,039.80 = 51,462.40/x
  3. Step 3: Cross multiply
    110,657.20x = 166,039.80 × 51,462.40
  4. Step 4: Simplify right side
    110,657.20x = 8,544,806,603.52
  5. Step 5: Solve for x
    x = 8,544,806,603.52/110,657.20
  6. Step 6: Final answer
    x = 77,218.71

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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.