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Finding the Fourth Proportional to 111,801.92, 154,289.04 and 61,500.92

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Solution

The fourth proportional to 111,801.92, 154,289.04 and 61,500.92 is: 84,872.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,801.92 : 154,289.04 = 61,500.92 : x
  2. Step 2: Convert to fraction form
    111,801.92/154,289.04 = 61,500.92/x
  3. Step 3: Cross multiply
    111,801.92x = 154,289.04 × 61,500.92
  4. Step 4: Simplify right side
    111,801.92x = 9,488,917,905.92
  5. Step 5: Solve for x
    x = 9,488,917,905.92/111,801.92
  6. Step 6: Final answer
    x = 84,872.58

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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.