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Finding the Fourth Proportional to 144,768.52, 217,155.78 and 39,586.84

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Solution

The fourth proportional to 144,768.52, 217,155.78 and 39,586.84 is: 59,381.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,768.52 : 217,155.78 = 39,586.84 : x
  2. Step 2: Convert to fraction form
    144,768.52/217,155.78 = 39,586.84/x
  3. Step 3: Cross multiply
    144,768.52x = 217,155.78 × 39,586.84
  4. Step 4: Simplify right side
    144,768.52x = 8,596,511,117.94
  5. Step 5: Solve for x
    x = 8,596,511,117.94/144,768.52
  6. Step 6: Final answer
    x = 59,381.08

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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.