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Finding the Fourth Proportional to 200,331.90, 276,479.97 and 127,737.36

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Solution

The fourth proportional to 200,331.90, 276,479.97 and 127,737.36 is: 176,291.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,331.90 : 276,479.97 = 127,737.36 : x
  2. Step 2: Convert to fraction form
    200,331.90/276,479.97 = 127,737.36/x
  3. Step 3: Cross multiply
    200,331.90x = 276,479.97 × 127,737.36
  4. Step 4: Simplify right side
    200,331.90x = 35,316,821,460.68
  5. Step 5: Solve for x
    x = 35,316,821,460.68/200,331.90
  6. Step 6: Final answer
    x = 176,291.55

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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.