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Finding the Fourth Proportional to 202,141.40, 303,248.55 and 83,824.70

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Solution

The fourth proportional to 202,141.40, 303,248.55 and 83,824.70 is: 125,752.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,141.40 : 303,248.55 = 83,824.70 : x
  2. Step 2: Convert to fraction form
    202,141.40/303,248.55 = 83,824.70/x
  3. Step 3: Cross multiply
    202,141.40x = 303,248.55 × 83,824.70
  4. Step 4: Simplify right side
    202,141.40x = 25,419,718,729.19
  5. Step 5: Solve for x
    x = 25,419,718,729.19/202,141.40
  6. Step 6: Final answer
    x = 125,752.17

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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.