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Finding the Fourth Proportional to 56,873.80, 78,511.01 and 36,740.49

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Solution

The fourth proportional to 56,873.80, 78,511.01 and 36,740.49 is: 50,718.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,873.80 : 78,511.01 = 36,740.49 : x
  2. Step 2: Convert to fraction form
    56,873.80/78,511.01 = 36,740.49/x
  3. Step 3: Cross multiply
    56,873.80x = 78,511.01 × 36,740.49
  4. Step 4: Simplify right side
    56,873.80x = 2,884,532,401.54
  5. Step 5: Solve for x
    x = 2,884,532,401.54/56,873.80
  6. Step 6: Final answer
    x = 50,718.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.