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Finding the Fourth Proportional to 53,567.60, 80,437.80 and 40,434.80

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Solution

The fourth proportional to 53,567.60, 80,437.80 and 40,434.80 is: 60,717.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,567.60 : 80,437.80 = 40,434.80 : x
  2. Step 2: Convert to fraction form
    53,567.60/80,437.80 = 40,434.80/x
  3. Step 3: Cross multiply
    53,567.60x = 80,437.80 × 40,434.80
  4. Step 4: Simplify right side
    53,567.60x = 3,252,486,355.44
  5. Step 5: Solve for x
    x = 3,252,486,355.44/53,567.60
  6. Step 6: Final answer
    x = 60,717.42

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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.