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Finding the Fourth Proportional to 111,932.42, 167,079.68 and 98,646.80

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Solution

The fourth proportional to 111,932.42, 167,079.68 and 98,646.80 is: 147,248.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,932.42 : 167,079.68 = 98,646.80 : x
  2. Step 2: Convert to fraction form
    111,932.42/167,079.68 = 98,646.80/x
  3. Step 3: Cross multiply
    111,932.42x = 167,079.68 × 98,646.80
  4. Step 4: Simplify right side
    111,932.42x = 16,481,874,818.32
  5. Step 5: Solve for x
    x = 16,481,874,818.32/111,932.42
  6. Step 6: Final answer
    x = 147,248.45

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.