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Finding the Fourth Proportional to 64,065.33, 96,118.55 and 30,787.80

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Solution

The fourth proportional to 64,065.33, 96,118.55 and 30,787.80 is: 46,191.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,065.33 : 96,118.55 = 30,787.80 : x
  2. Step 2: Convert to fraction form
    64,065.33/96,118.55 = 30,787.80/x
  3. Step 3: Cross multiply
    64,065.33x = 96,118.55 × 30,787.80
  4. Step 4: Simplify right side
    64,065.33x = 2,959,278,294.76
  5. Step 5: Solve for x
    x = 2,959,278,294.76/64,065.33
  6. Step 6: Final answer
    x = 46,191.57

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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.