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Finding the Fourth Proportional to 242,710.76, 334,178.61 and 206,340.64

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Solution

The fourth proportional to 242,710.76, 334,178.61 and 206,340.64 is: 284,102.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,710.76 : 334,178.61 = 206,340.64 : x
  2. Step 2: Convert to fraction form
    242,710.76/334,178.61 = 206,340.64/x
  3. Step 3: Cross multiply
    242,710.76x = 334,178.61 × 206,340.64
  4. Step 4: Simplify right side
    242,710.76x = 68,954,628,261.71
  5. Step 5: Solve for x
    x = 68,954,628,261.71/242,710.76
  6. Step 6: Final answer
    x = 284,102.07

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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.