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Finding the Fourth Proportional to 188,366.16, 259,959.87 and 107,818.95

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Solution

The fourth proportional to 188,366.16, 259,959.87 and 107,818.95 is: 148,798.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,366.16 : 259,959.87 = 107,818.95 : x
  2. Step 2: Convert to fraction form
    188,366.16/259,959.87 = 107,818.95/x
  3. Step 3: Cross multiply
    188,366.16x = 259,959.87 × 107,818.95
  4. Step 4: Simplify right side
    188,366.16x = 28,028,600,225.54
  5. Step 5: Solve for x
    x = 28,028,600,225.54/188,366.16
  6. Step 6: Final answer
    x = 148,798.49

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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.