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Finding the Fourth Proportional to 202,347.40, 303,278.10 and 83,957.80

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Solution

The fourth proportional to 202,347.40, 303,278.10 and 83,957.80 is: 125,835.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,347.40 : 303,278.10 = 83,957.80 : x
  2. Step 2: Convert to fraction form
    202,347.40/303,278.10 = 83,957.80/x
  3. Step 3: Cross multiply
    202,347.40x = 303,278.10 × 83,957.80
  4. Step 4: Simplify right side
    202,347.40x = 25,462,562,064.18
  5. Step 5: Solve for x
    x = 25,462,562,064.18/202,347.40
  6. Step 6: Final answer
    x = 125,835.87

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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.