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Finding the Fourth Proportional to 134,793.76, 186,016.01 and 74,364.38

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Solution

The fourth proportional to 134,793.76, 186,016.01 and 74,364.38 is: 102,623.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,793.76 : 186,016.01 = 74,364.38 : x
  2. Step 2: Convert to fraction form
    134,793.76/186,016.01 = 74,364.38/x
  3. Step 3: Cross multiply
    134,793.76x = 186,016.01 × 74,364.38
  4. Step 4: Simplify right side
    134,793.76x = 13,832,964,649.38
  5. Step 5: Solve for x
    x = 13,832,964,649.38/134,793.76
  6. Step 6: Final answer
    x = 102,623.18

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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.