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Finding the Fourth Proportional to 39,200.80, 58,801.20 and 37,818.40

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Solution

The fourth proportional to 39,200.80, 58,801.20 and 37,818.40 is: 56,727.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,200.80 : 58,801.20 = 37,818.40 : x
  2. Step 2: Convert to fraction form
    39,200.80/58,801.20 = 37,818.40/x
  3. Step 3: Cross multiply
    39,200.80x = 58,801.20 × 37,818.40
  4. Step 4: Simplify right side
    39,200.80x = 2,223,767,302.08
  5. Step 5: Solve for x
    x = 2,223,767,302.08/39,200.80
  6. Step 6: Final answer
    x = 56,727.60

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.