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Finding the Fourth Proportional to 188,694.01, 260,397.35 and 103,810.87

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Solution

The fourth proportional to 188,694.01, 260,397.35 and 103,810.87 is: 143,258.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,694.01 : 260,397.35 = 103,810.87 : x
  2. Step 2: Convert to fraction form
    188,694.01/260,397.35 = 103,810.87/x
  3. Step 3: Cross multiply
    188,694.01x = 260,397.35 × 103,810.87
  4. Step 4: Simplify right side
    188,694.01x = 27,032,074,930.14
  5. Step 5: Solve for x
    x = 27,032,074,930.14/188,694.01
  6. Step 6: Final answer
    x = 143,258.79

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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.