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Finding the Fourth Proportional to 52,799.72, 78,803.01 and 45,652.41

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Solution

The fourth proportional to 52,799.72, 78,803.01 and 45,652.41 is: 68,135.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,799.72 : 78,803.01 = 45,652.41 : x
  2. Step 2: Convert to fraction form
    52,799.72/78,803.01 = 45,652.41/x
  3. Step 3: Cross multiply
    52,799.72x = 78,803.01 × 45,652.41
  4. Step 4: Simplify right side
    52,799.72x = 3,597,547,321.75
  5. Step 5: Solve for x
    x = 3,597,547,321.75/52,799.72
  6. Step 6: Final answer
    x = 68,135.73

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.