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Finding the Fourth Proportional to 203,259.36, 304,934.40 and 63,019.20

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Solution

The fourth proportional to 203,259.36, 304,934.40 and 63,019.20 is: 94,542.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,259.36 : 304,934.40 = 63,019.20 : x
  2. Step 2: Convert to fraction form
    203,259.36/304,934.40 = 63,019.20/x
  3. Step 3: Cross multiply
    203,259.36x = 304,934.40 × 63,019.20
  4. Step 4: Simplify right side
    203,259.36x = 19,216,721,940.48
  5. Step 5: Solve for x
    x = 19,216,721,940.48/203,259.36
  6. Step 6: Final answer
    x = 94,542.86

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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.