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Finding the Fourth Proportional to 52,934,429.80, 79,401,644.70 and 18,894,212.20

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Solution

The fourth proportional to 52,934,429.80, 79,401,644.70 and 18,894,212.20 is: 28,341,318.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,934,429.80 : 79,401,644.70 = 18,894,212.20 : x
  2. Step 2: Convert to fraction form
    52,934,429.80/79,401,644.70 = 18,894,212.20/x
  3. Step 3: Cross multiply
    52,934,429.80x = 79,401,644.70 × 18,894,212.20
  4. Step 4: Simplify right side
    52,934,429.80x = 1,500,231,523,990,805.25
  5. Step 5: Solve for x
    x = 1,500,231,523,990,805.25/52,934,429.80
  6. Step 6: Final answer
    x = 28,341,318.30

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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.