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Finding the Fourth Proportional to 51,269.40, 76,904.10 and 43,752.60

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Solution

The fourth proportional to 51,269.40, 76,904.10 and 43,752.60 is: 65,628.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,269.40 : 76,904.10 = 43,752.60 : x
  2. Step 2: Convert to fraction form
    51,269.40/76,904.10 = 43,752.60/x
  3. Step 3: Cross multiply
    51,269.40x = 76,904.10 × 43,752.60
  4. Step 4: Simplify right side
    51,269.40x = 3,364,754,325.66
  5. Step 5: Solve for x
    x = 3,364,754,325.66/51,269.40
  6. Step 6: Final answer
    x = 65,628.90

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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.