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Finding the Fourth Proportional to 102,698.85, 154,086.54 and 62,799.87

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Solution

The fourth proportional to 102,698.85, 154,086.54 and 62,799.87 is: 94,223.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,698.85 : 154,086.54 = 62,799.87 : x
  2. Step 2: Convert to fraction form
    102,698.85/154,086.54 = 62,799.87/x
  3. Step 3: Cross multiply
    102,698.85x = 154,086.54 × 62,799.87
  4. Step 4: Simplify right side
    102,698.85x = 9,676,614,680.75
  5. Step 5: Solve for x
    x = 9,676,614,680.75/102,698.85
  6. Step 6: Final answer
    x = 94,223.20

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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.