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Finding the Fourth Proportional to 245,700.74, 368,553.15 and 68,221.59

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Solution

The fourth proportional to 245,700.74, 368,553.15 and 68,221.59 is: 102,332.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,700.74 : 368,553.15 = 68,221.59 : x
  2. Step 2: Convert to fraction form
    245,700.74/368,553.15 = 68,221.59/x
  3. Step 3: Cross multiply
    245,700.74x = 368,553.15 × 68,221.59
  4. Step 4: Simplify right side
    245,700.74x = 25,143,281,892.51
  5. Step 5: Solve for x
    x = 25,143,281,892.51/245,700.74
  6. Step 6: Final answer
    x = 102,332.95

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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.