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Finding the Fourth Proportional to 160,487.58, 240,653.61 and 80,491.17

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Solution

The fourth proportional to 160,487.58, 240,653.61 and 80,491.17 is: 120,697.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,487.58 : 240,653.61 = 80,491.17 : x
  2. Step 2: Convert to fraction form
    160,487.58/240,653.61 = 80,491.17/x
  3. Step 3: Cross multiply
    160,487.58x = 240,653.61 × 80,491.17
  4. Step 4: Simplify right side
    160,487.58x = 19,370,490,633.62
  5. Step 5: Solve for x
    x = 19,370,490,633.62/160,487.58
  6. Step 6: Final answer
    x = 120,697.76

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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.