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Finding the Fourth Proportional to 61,174,834.60, 91,762,251.90 and 36,988,364.20

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Solution

The fourth proportional to 61,174,834.60, 91,762,251.90 and 36,988,364.20 is: 55,482,546.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,174,834.60 : 91,762,251.90 = 36,988,364.20 : x
  2. Step 2: Convert to fraction form
    61,174,834.60/91,762,251.90 = 36,988,364.20/x
  3. Step 3: Cross multiply
    61,174,834.60x = 91,762,251.90 × 36,988,364.20
  4. Step 4: Simplify right side
    61,174,834.60x = 3,394,135,593,089,342.50
  5. Step 5: Solve for x
    x = 3,394,135,593,089,342.50/61,174,834.60
  6. Step 6: Final answer
    x = 55,482,546.30

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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.