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Finding the Fourth Proportional to 72,459.96, 99,975.81 and 41,825.55

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Solution

The fourth proportional to 72,459.96, 99,975.81 and 41,825.55 is: 57,708.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,459.96 : 99,975.81 = 41,825.55 : x
  2. Step 2: Convert to fraction form
    72,459.96/99,975.81 = 41,825.55/x
  3. Step 3: Cross multiply
    72,459.96x = 99,975.81 × 41,825.55
  4. Step 4: Simplify right side
    72,459.96x = 4,181,543,239.95
  5. Step 5: Solve for x
    x = 4,181,543,239.95/72,459.96
  6. Step 6: Final answer
    x = 57,708.33

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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.