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Finding the Fourth Proportional to 109,305.95, 150,842.72 and 61,560.14

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Solution

The fourth proportional to 109,305.95, 150,842.72 and 61,560.14 is: 84,953.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,305.95 : 150,842.72 = 61,560.14 : x
  2. Step 2: Convert to fraction form
    109,305.95/150,842.72 = 61,560.14/x
  3. Step 3: Cross multiply
    109,305.95x = 150,842.72 × 61,560.14
  4. Step 4: Simplify right side
    109,305.95x = 9,285,898,360.87
  5. Step 5: Solve for x
    x = 9,285,898,360.87/109,305.95
  6. Step 6: Final answer
    x = 84,953.28

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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.