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Finding the Fourth Proportional to 104,574.34, 144,239.62 and 68,752.90

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Solution

The fourth proportional to 104,574.34, 144,239.62 and 68,752.90 is: 94,831.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,574.34 : 144,239.62 = 68,752.90 : x
  2. Step 2: Convert to fraction form
    104,574.34/144,239.62 = 68,752.90/x
  3. Step 3: Cross multiply
    104,574.34x = 144,239.62 × 68,752.90
  4. Step 4: Simplify right side
    104,574.34x = 9,916,891,104.94
  5. Step 5: Solve for x
    x = 9,916,891,104.94/104,574.34
  6. Step 6: Final answer
    x = 94,831.02

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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.