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Finding the Fourth Proportional to 120,552, 166,362 and 67,560

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Solution

The fourth proportional to 120,552, 166,362 and 67,560 is: 93,232.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,552 : 166,362 = 67,560 : x
  2. Step 2: Convert to fraction form
    120,552/166,362 = 67,560/x
  3. Step 3: Cross multiply
    120,552x = 166,362 × 67,560
  4. Step 4: Simplify right side
    120,552x = 11,239,416,720
  5. Step 5: Solve for x
    x = 11,239,416,720/120,552
  6. Step 6: Final answer
    x = 93,232.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.