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Finding the Fourth Proportional to 235,979.40, 353,969.10 and 69,767.40

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Solution

The fourth proportional to 235,979.40, 353,969.10 and 69,767.40 is: 104,651.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,979.40 : 353,969.10 = 69,767.40 : x
  2. Step 2: Convert to fraction form
    235,979.40/353,969.10 = 69,767.40/x
  3. Step 3: Cross multiply
    235,979.40x = 353,969.10 × 69,767.40
  4. Step 4: Simplify right side
    235,979.40x = 24,695,503,787.34
  5. Step 5: Solve for x
    x = 24,695,503,787.34/235,979.40
  6. Step 6: Final answer
    x = 104,651.10

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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.