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Finding the Fourth Proportional to 112,361.78, 168,477.47 and 53,196.95

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Solution

The fourth proportional to 112,361.78, 168,477.47 and 53,196.95 is: 79,764.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,361.78 : 168,477.47 = 53,196.95 : x
  2. Step 2: Convert to fraction form
    112,361.78/168,477.47 = 53,196.95/x
  3. Step 3: Cross multiply
    112,361.78x = 168,477.47 × 53,196.95
  4. Step 4: Simplify right side
    112,361.78x = 8,962,487,281.73
  5. Step 5: Solve for x
    x = 8,962,487,281.73/112,361.78
  6. Step 6: Final answer
    x = 79,764.55

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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.