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Finding the Fourth Proportional to 188,959.68, 260,754.51 and 117,338.16

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Solution

The fourth proportional to 188,959.68, 260,754.51 and 117,338.16 is: 161,920.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,959.68 : 260,754.51 = 117,338.16 : x
  2. Step 2: Convert to fraction form
    188,959.68/260,754.51 = 117,338.16/x
  3. Step 3: Cross multiply
    188,959.68x = 260,754.51 × 117,338.16
  4. Step 4: Simplify right side
    188,959.68x = 30,596,454,415.10
  5. Step 5: Solve for x
    x = 30,596,454,415.10/188,959.68
  6. Step 6: Final answer
    x = 161,920.55

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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.