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Finding the Fourth Proportional to 144,991.02, 217,488.99 and 39,809.28

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Solution

The fourth proportional to 144,991.02, 217,488.99 and 39,809.28 is: 59,714.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,991.02 : 217,488.99 = 39,809.28 : x
  2. Step 2: Convert to fraction form
    144,991.02/217,488.99 = 39,809.28/x
  3. Step 3: Cross multiply
    144,991.02x = 217,488.99 × 39,809.28
  4. Step 4: Simplify right side
    144,991.02x = 8,658,080,099.83
  5. Step 5: Solve for x
    x = 8,658,080,099.83/144,991.02
  6. Step 6: Final answer
    x = 59,714.60

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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.