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Finding the Fourth Proportional to 158,499.04, 218,761.73 and 145,732.04

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Solution

The fourth proportional to 158,499.04, 218,761.73 and 145,732.04 is: 201,140.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,499.04 : 218,761.73 = 145,732.04 : x
  2. Step 2: Convert to fraction form
    158,499.04/218,761.73 = 145,732.04/x
  3. Step 3: Cross multiply
    158,499.04x = 218,761.73 × 145,732.04
  4. Step 4: Simplify right side
    158,499.04x = 31,880,593,961.75
  5. Step 5: Solve for x
    x = 31,880,593,961.75/158,499.04
  6. Step 6: Final answer
    x = 201,140.62

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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.