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Finding the Fourth Proportional to 74,763.73, 112,128.31 and 22,160.53

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Solution

The fourth proportional to 74,763.73, 112,128.31 and 22,160.53 is: 33,235.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,763.73 : 112,128.31 = 22,160.53 : x
  2. Step 2: Convert to fraction form
    74,763.73/112,128.31 = 22,160.53/x
  3. Step 3: Cross multiply
    74,763.73x = 112,128.31 × 22,160.53
  4. Step 4: Simplify right side
    74,763.73x = 2,484,822,777.60
  5. Step 5: Solve for x
    x = 2,484,822,777.60/74,763.73
  6. Step 6: Final answer
    x = 33,235.67

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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.