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Finding the Fourth Proportional to 188,906.70, 260,693.20 and 104,031.66

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Solution

The fourth proportional to 188,906.70, 260,693.20 and 104,031.66 is: 143,564.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,906.70 : 260,693.20 = 104,031.66 : x
  2. Step 2: Convert to fraction form
    188,906.70/260,693.20 = 104,031.66/x
  3. Step 3: Cross multiply
    188,906.70x = 260,693.20 × 104,031.66
  4. Step 4: Simplify right side
    188,906.70x = 27,120,346,346.71
  5. Step 5: Solve for x
    x = 27,120,346,346.71/188,906.70
  6. Step 6: Final answer
    x = 143,564.77

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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.