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Finding the Fourth Proportional to 103,353.96, 142,604.10 and 58,641.96

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Solution

The fourth proportional to 103,353.96, 142,604.10 and 58,641.96 is: 80,912.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,353.96 : 142,604.10 = 58,641.96 : x
  2. Step 2: Convert to fraction form
    103,353.96/142,604.10 = 58,641.96/x
  3. Step 3: Cross multiply
    103,353.96x = 142,604.10 × 58,641.96
  4. Step 4: Simplify right side
    103,353.96x = 8,362,583,928.04
  5. Step 5: Solve for x
    x = 8,362,583,928.04/103,353.96
  6. Step 6: Final answer
    x = 80,912.08

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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.