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Finding the Fourth Proportional to 104,763.74, 144,604.47 and 68,470.47

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Solution

The fourth proportional to 104,763.74, 144,604.47 and 68,470.47 is: 94,509.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,763.74 : 144,604.47 = 68,470.47 : x
  2. Step 2: Convert to fraction form
    104,763.74/144,604.47 = 68,470.47/x
  3. Step 3: Cross multiply
    104,763.74x = 144,604.47 × 68,470.47
  4. Step 4: Simplify right side
    104,763.74x = 9,901,136,025.00
  5. Step 5: Solve for x
    x = 9,901,136,025.00/104,763.74
  6. Step 6: Final answer
    x = 94,509.19

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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.