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Finding the Fourth Proportional to 247,983.84, 342,221.52 and 134,807.04

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Solution

The fourth proportional to 247,983.84, 342,221.52 and 134,807.04 is: 186,035.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,983.84 : 342,221.52 = 134,807.04 : x
  2. Step 2: Convert to fraction form
    247,983.84/342,221.52 = 134,807.04/x
  3. Step 3: Cross multiply
    247,983.84x = 342,221.52 × 134,807.04
  4. Step 4: Simplify right side
    247,983.84x = 46,133,870,135.50
  5. Step 5: Solve for x
    x = 46,133,870,135.50/247,983.84
  6. Step 6: Final answer
    x = 186,035.79

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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.