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Finding the Fourth Proportional to 271,990.48, 408,158.52 and 105,779.92

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Solution

The fourth proportional to 271,990.48, 408,158.52 and 105,779.92 is: 158,737.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,990.48 : 408,158.52 = 105,779.92 : x
  2. Step 2: Convert to fraction form
    271,990.48/408,158.52 = 105,779.92/x
  3. Step 3: Cross multiply
    271,990.48x = 408,158.52 × 105,779.92
  4. Step 4: Simplify right side
    271,990.48x = 43,174,975,592.92
  5. Step 5: Solve for x
    x = 43,174,975,592.92/271,990.48
  6. Step 6: Final answer
    x = 158,737.08

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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.