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Finding the Fourth Proportional to 43,114.80, 64,816.20 and 37,412.40

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Solution

The fourth proportional to 43,114.80, 64,816.20 and 37,412.40 is: 56,243.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,114.80 : 64,816.20 = 37,412.40 : x
  2. Step 2: Convert to fraction form
    43,114.80/64,816.20 = 37,412.40/x
  3. Step 3: Cross multiply
    43,114.80x = 64,816.20 × 37,412.40
  4. Step 4: Simplify right side
    43,114.80x = 2,424,929,600.88
  5. Step 5: Solve for x
    x = 2,424,929,600.88/43,114.80
  6. Step 6: Final answer
    x = 56,243.55

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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.