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Finding the Fourth Proportional to 188,782.39, 260,519.52 and 103,904.92

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Solution

The fourth proportional to 188,782.39, 260,519.52 and 103,904.92 is: 143,388.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,782.39 : 260,519.52 = 103,904.92 : x
  2. Step 2: Convert to fraction form
    188,782.39/260,519.52 = 103,904.92/x
  3. Step 3: Cross multiply
    188,782.39x = 260,519.52 × 103,904.92
  4. Step 4: Simplify right side
    188,782.39x = 27,069,259,884.04
  5. Step 5: Solve for x
    x = 27,069,259,884.04/188,782.39
  6. Step 6: Final answer
    x = 143,388.69

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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.