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Finding the Fourth Proportional to 111,867.66, 167,801.94 and 45,309.06

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Solution

The fourth proportional to 111,867.66, 167,801.94 and 45,309.06 is: 67,963.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,867.66 : 167,801.94 = 45,309.06 : x
  2. Step 2: Convert to fraction form
    111,867.66/167,801.94 = 45,309.06/x
  3. Step 3: Cross multiply
    111,867.66x = 167,801.94 × 45,309.06
  4. Step 4: Simplify right side
    111,867.66x = 7,602,948,167.58
  5. Step 5: Solve for x
    x = 7,602,948,167.58/111,867.66
  6. Step 6: Final answer
    x = 67,963.77

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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.