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Finding the Fourth Proportional to 240,815.70, 361,114.20 and 91,006.20

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Solution

The fourth proportional to 240,815.70, 361,114.20 and 91,006.20 is: 136,467.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,815.70 : 361,114.20 = 91,006.20 : x
  2. Step 2: Convert to fraction form
    240,815.70/361,114.20 = 91,006.20/x
  3. Step 3: Cross multiply
    240,815.70x = 361,114.20 × 91,006.20
  4. Step 4: Simplify right side
    240,815.70x = 32,863,631,108.04
  5. Step 5: Solve for x
    x = 32,863,631,108.04/240,815.70
  6. Step 6: Final answer
    x = 136,467.98

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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.