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Finding the Fourth Proportional to 203,068.79, 304,882.71 and 103,296.50

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Solution

The fourth proportional to 203,068.79, 304,882.71 and 103,296.50 is: 155,086.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,068.79 : 304,882.71 = 103,296.50 : x
  2. Step 2: Convert to fraction form
    203,068.79/304,882.71 = 103,296.50/x
  3. Step 3: Cross multiply
    203,068.79x = 304,882.71 × 103,296.50
  4. Step 4: Simplify right side
    203,068.79x = 31,493,316,853.52
  5. Step 5: Solve for x
    x = 31,493,316,853.52/203,068.79
  6. Step 6: Final answer
    x = 155,086.94

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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.