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Finding the Fourth Proportional to 202,996.53, 280,129.59 and 112,350.24

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Solution

The fourth proportional to 202,996.53, 280,129.59 and 112,350.24 is: 155,040.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,996.53 : 280,129.59 = 112,350.24 : x
  2. Step 2: Convert to fraction form
    202,996.53/280,129.59 = 112,350.24/x
  3. Step 3: Cross multiply
    202,996.53x = 280,129.59 × 112,350.24
  4. Step 4: Simplify right side
    202,996.53x = 31,472,626,667.60
  5. Step 5: Solve for x
    x = 31,472,626,667.60/202,996.53
  6. Step 6: Final answer
    x = 155,040.22

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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.