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Finding the Fourth Proportional to 67,657.80, 93,367.92 and 37,445.20

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Solution

The fourth proportional to 67,657.80, 93,367.92 and 37,445.20 is: 51,674.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,657.80 : 93,367.92 = 37,445.20 : x
  2. Step 2: Convert to fraction form
    67,657.80/93,367.92 = 37,445.20/x
  3. Step 3: Cross multiply
    67,657.80x = 93,367.92 × 37,445.20
  4. Step 4: Simplify right side
    67,657.80x = 3,496,180,437.98
  5. Step 5: Solve for x
    x = 3,496,180,437.98/67,657.80
  6. Step 6: Final answer
    x = 51,674.46

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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.