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Finding the Fourth Proportional to 73,297,486.80, 109,946,230.20 and 48,744,912.60

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Solution

The fourth proportional to 73,297,486.80, 109,946,230.20 and 48,744,912.60 is: 73,117,368.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,297,486.80 : 109,946,230.20 = 48,744,912.60 : x
  2. Step 2: Convert to fraction form
    73,297,486.80/109,946,230.20 = 48,744,912.60/x
  3. Step 3: Cross multiply
    73,297,486.80x = 109,946,230.20 × 48,744,912.60
  4. Step 4: Simplify right side
    73,297,486.80x = 5,359,319,381,798,481
  5. Step 5: Solve for x
    x = 5,359,319,381,798,481/73,297,486.80
  6. Step 6: Final answer
    x = 73,117,368.90

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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.