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Finding the Fourth Proportional to 60,586.80, 90,685.80 and 43,090.80

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Solution

The fourth proportional to 60,586.80, 90,685.80 and 43,090.80 is: 64,497.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,586.80 : 90,685.80 = 43,090.80 : x
  2. Step 2: Convert to fraction form
    60,586.80/90,685.80 = 43,090.80/x
  3. Step 3: Cross multiply
    60,586.80x = 90,685.80 × 43,090.80
  4. Step 4: Simplify right side
    60,586.80x = 3,907,723,670.64
  5. Step 5: Solve for x
    x = 3,907,723,670.64/60,586.80
  6. Step 6: Final answer
    x = 64,497.94

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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.