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Finding the Fourth Proportional to 202,176.30, 303,373.80 and 83,859.60

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Solution

The fourth proportional to 202,176.30, 303,373.80 and 83,859.60 is: 125,834.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,176.30 : 303,373.80 = 83,859.60 : x
  2. Step 2: Convert to fraction form
    202,176.30/303,373.80 = 83,859.60/x
  3. Step 3: Cross multiply
    202,176.30x = 303,373.80 × 83,859.60
  4. Step 4: Simplify right side
    202,176.30x = 25,440,805,518.48
  5. Step 5: Solve for x
    x = 25,440,805,518.48/202,176.30
  6. Step 6: Final answer
    x = 125,834.76

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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.