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Finding the Fourth Proportional to 104,873.69, 144,721.60 and 64,106.07

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Solution

The fourth proportional to 104,873.69, 144,721.60 and 64,106.07 is: 88,463.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,873.69 : 144,721.60 = 64,106.07 : x
  2. Step 2: Convert to fraction form
    104,873.69/144,721.60 = 64,106.07/x
  3. Step 3: Cross multiply
    104,873.69x = 144,721.60 × 64,106.07
  4. Step 4: Simplify right side
    104,873.69x = 9,277,533,020.11
  5. Step 5: Solve for x
    x = 9,277,533,020.11/104,873.69
  6. Step 6: Final answer
    x = 88,463.88

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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.