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Finding the Fourth Proportional to 147,023.75, 202,892.78 and 79,955.75

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Solution

The fourth proportional to 147,023.75, 202,892.78 and 79,955.75 is: 110,338.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,023.75 : 202,892.78 = 79,955.75 : x
  2. Step 2: Convert to fraction form
    147,023.75/202,892.78 = 79,955.75/x
  3. Step 3: Cross multiply
    147,023.75x = 202,892.78 × 79,955.75
  4. Step 4: Simplify right side
    147,023.75x = 16,222,444,394.49
  5. Step 5: Solve for x
    x = 16,222,444,394.49/147,023.75
  6. Step 6: Final answer
    x = 110,338.94

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1.5x scale

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.