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Finding the Fourth Proportional to 200,593.64, 276,849.72 and 128,027.88

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Solution

The fourth proportional to 200,593.64, 276,849.72 and 128,027.88 is: 176,697.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,593.64 : 276,849.72 = 128,027.88 : x
  2. Step 2: Convert to fraction form
    200,593.64/276,849.72 = 128,027.88/x
  3. Step 3: Cross multiply
    200,593.64x = 276,849.72 × 128,027.88
  4. Step 4: Simplify right side
    200,593.64x = 35,444,482,730.19
  5. Step 5: Solve for x
    x = 35,444,482,730.19/200,593.64
  6. Step 6: Final answer
    x = 176,697.94

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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.