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Finding the Fourth Proportional to 188,545.77, 260,194.14 and 103,668.30

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Solution

The fourth proportional to 188,545.77, 260,194.14 and 103,668.30 is: 143,062.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,545.77 : 260,194.14 = 103,668.30 : x
  2. Step 2: Convert to fraction form
    188,545.77/260,194.14 = 103,668.30/x
  3. Step 3: Cross multiply
    188,545.77x = 260,194.14 × 103,668.30
  4. Step 4: Simplify right side
    188,545.77x = 26,973,884,163.76
  5. Step 5: Solve for x
    x = 26,973,884,163.76/188,545.77
  6. Step 6: Final answer
    x = 143,062.79

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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.