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Finding the Fourth Proportional to 203,041.20, 304,561.80 and 92,233.20

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Solution

The fourth proportional to 203,041.20, 304,561.80 and 92,233.20 is: 138,349.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,041.20 : 304,561.80 = 92,233.20 : x
  2. Step 2: Convert to fraction form
    203,041.20/304,561.80 = 92,233.20/x
  3. Step 3: Cross multiply
    203,041.20x = 304,561.80 × 92,233.20
  4. Step 4: Simplify right side
    203,041.20x = 28,090,709,411.76
  5. Step 5: Solve for x
    x = 28,090,709,411.76/203,041.20
  6. Step 6: Final answer
    x = 138,349.80

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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.