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Finding the Fourth Proportional to 102,626.78, 153,918.18 and 59,903.73

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Solution

The fourth proportional to 102,626.78, 153,918.18 and 59,903.73 is: 89,842.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,626.78 : 153,918.18 = 59,903.73 : x
  2. Step 2: Convert to fraction form
    102,626.78/153,918.18 = 59,903.73/x
  3. Step 3: Cross multiply
    102,626.78x = 153,918.18 × 59,903.73
  4. Step 4: Simplify right side
    102,626.78x = 9,220,273,096.81
  5. Step 5: Solve for x
    x = 9,220,273,096.81/102,626.78
  6. Step 6: Final answer
    x = 89,842.76

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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.