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Finding the Fourth Proportional to 200,297.68, 276,598.16 and 128,801.88

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Solution

The fourth proportional to 200,297.68, 276,598.16 and 128,801.88 is: 177,867.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,297.68 : 276,598.16 = 128,801.88 : x
  2. Step 2: Convert to fraction form
    200,297.68/276,598.16 = 128,801.88/x
  3. Step 3: Cross multiply
    200,297.68x = 276,598.16 × 128,801.88
  4. Step 4: Simplify right side
    200,297.68x = 35,626,363,012.54
  5. Step 5: Solve for x
    x = 35,626,363,012.54/200,297.68
  6. Step 6: Final answer
    x = 177,867.08

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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.