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Finding the Fourth Proportional to 104,894.37, 144,807.84 and 71,081.51

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Solution

The fourth proportional to 104,894.37, 144,807.84 and 71,081.51 is: 98,128.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,894.37 : 144,807.84 = 71,081.51 : x
  2. Step 2: Convert to fraction form
    104,894.37/144,807.84 = 71,081.51/x
  3. Step 3: Cross multiply
    104,894.37x = 144,807.84 × 71,081.51
  4. Step 4: Simplify right side
    104,894.37x = 10,293,159,203.00
  5. Step 5: Solve for x
    x = 10,293,159,203.00/104,894.37
  6. Step 6: Final answer
    x = 98,128.81

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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.