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Finding the Fourth Proportional to 203,066.79, 304,879.71 and 103,294.50

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Solution

The fourth proportional to 203,066.79, 304,879.71 and 103,294.50 is: 155,083.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,066.79 : 304,879.71 = 103,294.50 : x
  2. Step 2: Convert to fraction form
    203,066.79/304,879.71 = 103,294.50/x
  3. Step 3: Cross multiply
    203,066.79x = 304,879.71 × 103,294.50
  4. Step 4: Simplify right side
    203,066.79x = 31,492,397,204.60
  5. Step 5: Solve for x
    x = 31,492,397,204.60/203,066.79
  6. Step 6: Final answer
    x = 155,083.94

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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.