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Finding the Fourth Proportional to 219,470.67, 329,218.16 and 69,700.05

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Solution

The fourth proportional to 219,470.67, 329,218.16 and 69,700.05 is: 104,553.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,470.67 : 329,218.16 = 69,700.05 : x
  2. Step 2: Convert to fraction form
    219,470.67/329,218.16 = 69,700.05/x
  3. Step 3: Cross multiply
    219,470.67x = 329,218.16 × 69,700.05
  4. Step 4: Simplify right side
    219,470.67x = 22,946,521,864.41
  5. Step 5: Solve for x
    x = 22,946,521,864.41/219,470.67
  6. Step 6: Final answer
    x = 104,553.93

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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.