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Finding the Fourth Proportional to 111,881.25, 167,822.33 and 45,322.64

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Solution

The fourth proportional to 111,881.25, 167,822.33 and 45,322.64 is: 67,984.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,881.25 : 167,822.33 = 45,322.64 : x
  2. Step 2: Convert to fraction form
    111,881.25/167,822.33 = 45,322.64/x
  3. Step 3: Cross multiply
    111,881.25x = 167,822.33 × 45,322.64
  4. Step 4: Simplify right side
    111,881.25x = 7,606,149,980.83
  5. Step 5: Solve for x
    x = 7,606,149,980.83/111,881.25
  6. Step 6: Final answer
    x = 67,984.13

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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.