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Finding the Fourth Proportional to 245,785.07, 368,677.43 and 68,292

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Solution

The fourth proportional to 245,785.07, 368,677.43 and 68,292 is: 102,437.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,785.07 : 368,677.43 = 68,292 : x
  2. Step 2: Convert to fraction form
    245,785.07/368,677.43 = 68,292/x
  3. Step 3: Cross multiply
    245,785.07x = 368,677.43 × 68,292
  4. Step 4: Simplify right side
    245,785.07x = 25,177,718,708.10
  5. Step 5: Solve for x
    x = 25,177,718,708.10/245,785.07
  6. Step 6: Final answer
    x = 102,437.95

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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.