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Finding the Fourth Proportional to 242,696.94, 334,923.45 and 135,273.90

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Solution

The fourth proportional to 242,696.94, 334,923.45 and 135,273.90 is: 186,678.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,696.94 : 334,923.45 = 135,273.90 : x
  2. Step 2: Convert to fraction form
    242,696.94/334,923.45 = 135,273.90/x
  3. Step 3: Cross multiply
    242,696.94x = 334,923.45 × 135,273.90
  4. Step 4: Simplify right side
    242,696.94x = 45,306,401,282.96
  5. Step 5: Solve for x
    x = 45,306,401,282.96/242,696.94
  6. Step 6: Final answer
    x = 186,678.91

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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.