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Finding the Fourth Proportional to 245,727.60, 368,608.14 and 83,555.61

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Solution

The fourth proportional to 245,727.60, 368,608.14 and 83,555.61 is: 125,339.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,727.60 : 368,608.14 = 83,555.61 : x
  2. Step 2: Convert to fraction form
    245,727.60/368,608.14 = 83,555.61/x
  3. Step 3: Cross multiply
    245,727.60x = 368,608.14 × 83,555.61
  4. Step 4: Simplify right side
    245,727.60x = 30,799,277,988.67
  5. Step 5: Solve for x
    x = 30,799,277,988.67/245,727.60
  6. Step 6: Final answer
    x = 125,339.11

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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.