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Finding the Fourth Proportional to 188,855.88, 260,616.06 and 103,973.58

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Solution

The fourth proportional to 188,855.88, 260,616.06 and 103,973.58 is: 143,480.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,855.88 : 260,616.06 = 103,973.58 : x
  2. Step 2: Convert to fraction form
    188,855.88/260,616.06 = 103,973.58/x
  3. Step 3: Cross multiply
    188,855.88x = 260,616.06 × 103,973.58
  4. Step 4: Simplify right side
    188,855.88x = 27,097,184,763.69
  5. Step 5: Solve for x
    x = 27,097,184,763.69/188,855.88
  6. Step 6: Final answer
    x = 143,480.76

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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.