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Finding the Fourth Proportional to 72,351.02, 108,525.51 and 43,894.76

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Solution

The fourth proportional to 72,351.02, 108,525.51 and 43,894.76 is: 65,841.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,351.02 : 108,525.51 = 43,894.76 : x
  2. Step 2: Convert to fraction form
    72,351.02/108,525.51 = 43,894.76/x
  3. Step 3: Cross multiply
    72,351.02x = 108,525.51 × 43,894.76
  4. Step 4: Simplify right side
    72,351.02x = 4,763,700,672.70
  5. Step 5: Solve for x
    x = 4,763,700,672.70/72,351.02
  6. Step 6: Final answer
    x = 65,841.52

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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.