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Finding the Fourth Proportional to 321,510.08, 482,166.60 and 222,307.76

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Solution

The fourth proportional to 321,510.08, 482,166.60 and 222,307.76 is: 333,393.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,510.08 : 482,166.60 = 222,307.76 : x
  2. Step 2: Convert to fraction form
    321,510.08/482,166.60 = 222,307.76/x
  3. Step 3: Cross multiply
    321,510.08x = 482,166.60 × 222,307.76
  4. Step 4: Simplify right side
    321,510.08x = 107,189,374,381.98
  5. Step 5: Solve for x
    x = 107,189,374,381.98/321,510.08
  6. Step 6: Final answer
    x = 333,393.52

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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.