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Finding the Fourth Proportional to 104,710.49, 157,006.23 and 71,470.79

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Solution

The fourth proportional to 104,710.49, 157,006.23 and 71,470.79 is: 107,165.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,710.49 : 157,006.23 = 71,470.79 : x
  2. Step 2: Convert to fraction form
    104,710.49/157,006.23 = 71,470.79/x
  3. Step 3: Cross multiply
    104,710.49x = 157,006.23 × 71,470.79
  4. Step 4: Simplify right side
    104,710.49x = 11,221,359,293.02
  5. Step 5: Solve for x
    x = 11,221,359,293.02/104,710.49
  6. Step 6: Final answer
    x = 107,165.57

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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.