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Finding the Fourth Proportional to 358,315.92, 537,551.64 and 108,991.44

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Solution

The fourth proportional to 358,315.92, 537,551.64 and 108,991.44 is: 163,510.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,315.92 : 537,551.64 = 108,991.44 : x
  2. Step 2: Convert to fraction form
    358,315.92/537,551.64 = 108,991.44/x
  3. Step 3: Cross multiply
    358,315.92x = 537,551.64 × 108,991.44
  4. Step 4: Simplify right side
    358,315.92x = 58,588,527,317.96
  5. Step 5: Solve for x
    x = 58,588,527,317.96/358,315.92
  6. Step 6: Final answer
    x = 163,510.81

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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.