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Finding the Fourth Proportional to 203,588.82, 280,768.50 and 127,114.82

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Solution

The fourth proportional to 203,588.82, 280,768.50 and 127,114.82 is: 175,303.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,588.82 : 280,768.50 = 127,114.82 : x
  2. Step 2: Convert to fraction form
    203,588.82/280,768.50 = 127,114.82/x
  3. Step 3: Cross multiply
    203,588.82x = 280,768.50 × 127,114.82
  4. Step 4: Simplify right side
    203,588.82x = 35,689,837,339.17
  5. Step 5: Solve for x
    x = 35,689,837,339.17/203,588.82
  6. Step 6: Final answer
    x = 175,303.52

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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.