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Finding the Fourth Proportional to 65,188.80, 97,783.20 and 41,860.80

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Solution

The fourth proportional to 65,188.80, 97,783.20 and 41,860.80 is: 62,791.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,188.80 : 97,783.20 = 41,860.80 : x
  2. Step 2: Convert to fraction form
    65,188.80/97,783.20 = 41,860.80/x
  3. Step 3: Cross multiply
    65,188.80x = 97,783.20 × 41,860.80
  4. Step 4: Simplify right side
    65,188.80x = 4,093,282,978.56
  5. Step 5: Solve for x
    x = 4,093,282,978.56/65,188.80
  6. Step 6: Final answer
    x = 62,791.20

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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.