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Finding the Fourth Proportional to 105,785.88, 158,601.06 and 50,420.76

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Solution

The fourth proportional to 105,785.88, 158,601.06 and 50,420.76 is: 75,594.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,785.88 : 158,601.06 = 50,420.76 : x
  2. Step 2: Convert to fraction form
    105,785.88/158,601.06 = 50,420.76/x
  3. Step 3: Cross multiply
    105,785.88x = 158,601.06 × 50,420.76
  4. Step 4: Simplify right side
    105,785.88x = 7,996,785,982.01
  5. Step 5: Solve for x
    x = 7,996,785,982.01/105,785.88
  6. Step 6: Final answer
    x = 75,594.08

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1.5x scale

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.