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Finding the Fourth Proportional to 114,288.58, 157,719.40 and 68,957.78

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Solution

The fourth proportional to 114,288.58, 157,719.40 and 68,957.78 is: 95,162.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,288.58 : 157,719.40 = 68,957.78 : x
  2. Step 2: Convert to fraction form
    114,288.58/157,719.40 = 68,957.78/x
  3. Step 3: Cross multiply
    114,288.58x = 157,719.40 × 68,957.78
  4. Step 4: Simplify right side
    114,288.58x = 10,875,979,908.84
  5. Step 5: Solve for x
    x = 10,875,979,908.84/114,288.58
  6. Step 6: Final answer
    x = 95,162.44

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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.