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Finding the Fourth Proportional to 52,974,109.20, 79,461,163.80 and 45,793,750.80

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Solution

The fourth proportional to 52,974,109.20, 79,461,163.80 and 45,793,750.80 is: 68,690,626.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,974,109.20 : 79,461,163.80 = 45,793,750.80 : x
  2. Step 2: Convert to fraction form
    52,974,109.20/79,461,163.80 = 45,793,750.80/x
  3. Step 3: Cross multiply
    52,974,109.20x = 79,461,163.80 × 45,793,750.80
  4. Step 4: Simplify right side
    52,974,109.20x = 3,638,824,733,335,180.50
  5. Step 5: Solve for x
    x = 3,638,824,733,335,180.50/52,974,109.20
  6. Step 6: Final answer
    x = 68,690,626.20

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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.