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Finding the Fourth Proportional to 200,196.18, 276,382.08 and 139,033.08

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Solution

The fourth proportional to 200,196.18, 276,382.08 and 139,033.08 is: 191,942.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,196.18 : 276,382.08 = 139,033.08 : x
  2. Step 2: Convert to fraction form
    200,196.18/276,382.08 = 139,033.08/x
  3. Step 3: Cross multiply
    200,196.18x = 276,382.08 × 139,033.08
  4. Step 4: Simplify right side
    200,196.18x = 38,426,251,839.21
  5. Step 5: Solve for x
    x = 38,426,251,839.21/200,196.18
  6. Step 6: Final answer
    x = 191,942.98

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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.