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Finding the Fourth Proportional to 111,001.60, 166,502.40 and 101,816.20

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Solution

The fourth proportional to 111,001.60, 166,502.40 and 101,816.20 is: 152,724.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,001.60 : 166,502.40 = 101,816.20 : x
  2. Step 2: Convert to fraction form
    111,001.60/166,502.40 = 101,816.20/x
  3. Step 3: Cross multiply
    111,001.60x = 166,502.40 × 101,816.20
  4. Step 4: Simplify right side
    111,001.60x = 16,952,641,658.88
  5. Step 5: Solve for x
    x = 16,952,641,658.88/111,001.60
  6. Step 6: Final answer
    x = 152,724.30

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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.