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Finding the Fourth Proportional to 200,068.74, 276,083.55 and 109,406.70

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Solution

The fourth proportional to 200,068.74, 276,083.55 and 109,406.70 is: 150,975.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,068.74 : 276,083.55 = 109,406.70 : x
  2. Step 2: Convert to fraction form
    200,068.74/276,083.55 = 109,406.70/x
  3. Step 3: Cross multiply
    200,068.74x = 276,083.55 × 109,406.70
  4. Step 4: Simplify right side
    200,068.74x = 30,205,390,129.79
  5. Step 5: Solve for x
    x = 30,205,390,129.79/200,068.74
  6. Step 6: Final answer
    x = 150,975.06

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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.