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Finding the Fourth Proportional to 67,799.94, 93,552.43 and 45,172.68

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Solution

The fourth proportional to 67,799.94, 93,552.43 and 45,172.68 is: 62,330.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,799.94 : 93,552.43 = 45,172.68 : x
  2. Step 2: Convert to fraction form
    67,799.94/93,552.43 = 45,172.68/x
  3. Step 3: Cross multiply
    67,799.94x = 93,552.43 × 45,172.68
  4. Step 4: Simplify right side
    67,799.94x = 4,226,013,983.61
  5. Step 5: Solve for x
    x = 4,226,013,983.61/67,799.94
  6. Step 6: Final answer
    x = 62,330.64

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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.