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Finding the Fourth Proportional to 111,478.32, 167,239.44 and 49,149.36

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Solution

The fourth proportional to 111,478.32, 167,239.44 and 49,149.36 is: 73,733.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,478.32 : 167,239.44 = 49,149.36 : x
  2. Step 2: Convert to fraction form
    111,478.32/167,239.44 = 49,149.36/x
  3. Step 3: Cross multiply
    111,478.32x = 167,239.44 × 49,149.36
  4. Step 4: Simplify right side
    111,478.32x = 8,219,711,442.76
  5. Step 5: Solve for x
    x = 8,219,711,442.76/111,478.32
  6. Step 6: Final answer
    x = 73,733.72

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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.