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Finding the Fourth Proportional to 111,315.52, 166,967.34 and 36,426.16

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Solution

The fourth proportional to 111,315.52, 166,967.34 and 36,426.16 is: 54,637.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,315.52 : 166,967.34 = 36,426.16 : x
  2. Step 2: Convert to fraction form
    111,315.52/166,967.34 = 36,426.16/x
  3. Step 3: Cross multiply
    111,315.52x = 166,967.34 × 36,426.16
  4. Step 4: Simplify right side
    111,315.52x = 6,081,979,041.61
  5. Step 5: Solve for x
    x = 6,081,979,041.61/111,315.52
  6. Step 6: Final answer
    x = 54,637.30

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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.