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Finding the Fourth Proportional to 202,272.20, 303,529.80 and 83,931.20

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Solution

The fourth proportional to 202,272.20, 303,529.80 and 83,931.20 is: 125,947.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,272.20 : 303,529.80 = 83,931.20 : x
  2. Step 2: Convert to fraction form
    202,272.20/303,529.80 = 83,931.20/x
  3. Step 3: Cross multiply
    202,272.20x = 303,529.80 × 83,931.20
  4. Step 4: Simplify right side
    202,272.20x = 25,475,620,349.76
  5. Step 5: Solve for x
    x = 25,475,620,349.76/202,272.20
  6. Step 6: Final answer
    x = 125,947.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.