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Finding the Fourth Proportional to 111,987.62, 168,005.05 and 37,103.48

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Solution

The fourth proportional to 111,987.62, 168,005.05 and 37,103.48 is: 55,663.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,987.62 : 168,005.05 = 37,103.48 : x
  2. Step 2: Convert to fraction form
    111,987.62/168,005.05 = 37,103.48/x
  3. Step 3: Cross multiply
    111,987.62x = 168,005.05 × 37,103.48
  4. Step 4: Simplify right side
    111,987.62x = 6,233,571,079.79
  5. Step 5: Solve for x
    x = 6,233,571,079.79/111,987.62
  6. Step 6: Final answer
    x = 55,663.04

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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.