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Finding the Fourth Proportional to 321,049.79, 481,579.40 and 152,587.31

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Solution

The fourth proportional to 321,049.79, 481,579.40 and 152,587.31 is: 228,883.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,049.79 : 481,579.40 = 152,587.31 : x
  2. Step 2: Convert to fraction form
    321,049.79/481,579.40 = 152,587.31/x
  3. Step 3: Cross multiply
    321,049.79x = 481,579.40 × 152,587.31
  4. Step 4: Simplify right side
    321,049.79x = 73,482,902,026.58
  5. Step 5: Solve for x
    x = 73,482,902,026.58/321,049.79
  6. Step 6: Final answer
    x = 228,883.19

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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.