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Finding the Fourth Proportional to 192,807.20, 266,071.02 and 107,927.30

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Solution

The fourth proportional to 192,807.20, 266,071.02 and 107,927.30 is: 148,938.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,807.20 : 266,071.02 = 107,927.30 : x
  2. Step 2: Convert to fraction form
    192,807.20/266,071.02 = 107,927.30/x
  3. Step 3: Cross multiply
    192,807.20x = 266,071.02 × 107,927.30
  4. Step 4: Simplify right side
    192,807.20x = 28,716,326,796.85
  5. Step 5: Solve for x
    x = 28,716,326,796.85/192,807.20
  6. Step 6: Final answer
    x = 148,938.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.