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Finding the Fourth Proportional to 68,572.56, 102,109.48 and 66,050.24

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Solution

The fourth proportional to 68,572.56, 102,109.48 and 66,050.24 is: 98,353.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,572.56 : 102,109.48 = 66,050.24 : x
  2. Step 2: Convert to fraction form
    68,572.56/102,109.48 = 66,050.24/x
  3. Step 3: Cross multiply
    68,572.56x = 102,109.48 × 66,050.24
  4. Step 4: Simplify right side
    68,572.56x = 6,744,355,660.28
  5. Step 5: Solve for x
    x = 6,744,355,660.28/68,572.56
  6. Step 6: Final answer
    x = 98,353.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.