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Finding the Fourth Proportional to 188,963.69, 260,770.59 and 104,080.55

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Solution

The fourth proportional to 188,963.69, 260,770.59 and 104,080.55 is: 143,631.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,963.69 : 260,770.59 = 104,080.55 : x
  2. Step 2: Convert to fraction form
    188,963.69/260,770.59 = 104,080.55/x
  3. Step 3: Cross multiply
    188,963.69x = 260,770.59 × 104,080.55
  4. Step 4: Simplify right side
    188,963.69x = 27,141,145,127.17
  5. Step 5: Solve for x
    x = 27,141,145,127.17/188,963.69
  6. Step 6: Final answer
    x = 143,631.54

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1.5x scale

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.