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Finding the Fourth Proportional to 74,697.86, 111,962.05 and 46,630.45

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Solution

The fourth proportional to 74,697.86, 111,962.05 and 46,630.45 is: 69,892.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,697.86 : 111,962.05 = 46,630.45 : x
  2. Step 2: Convert to fraction form
    74,697.86/111,962.05 = 46,630.45/x
  3. Step 3: Cross multiply
    74,697.86x = 111,962.05 × 46,630.45
  4. Step 4: Simplify right side
    74,697.86x = 5,220,840,797.80
  5. Step 5: Solve for x
    x = 5,220,840,797.80/74,697.86
  6. Step 6: Final answer
    x = 69,892.77

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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.