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Finding the Fourth Proportional to 109,253.62, 150,769.56 and 61,507.06

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Solution

The fourth proportional to 109,253.62, 150,769.56 and 61,507.06 is: 84,879.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,253.62 : 150,769.56 = 61,507.06 : x
  2. Step 2: Convert to fraction form
    109,253.62/150,769.56 = 61,507.06/x
  3. Step 3: Cross multiply
    109,253.62x = 150,769.56 × 61,507.06
  4. Step 4: Simplify right side
    109,253.62x = 9,273,392,373.09
  5. Step 5: Solve for x
    x = 9,273,392,373.09/109,253.62
  6. Step 6: Final answer
    x = 84,879.50

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1.5x scale

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.