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Finding the Fourth Proportional to 117,953.60, 176,803.13 and 57,912.25

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Solution

The fourth proportional to 117,953.60, 176,803.13 and 57,912.25 is: 86,805.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,953.60 : 176,803.13 = 57,912.25 : x
  2. Step 2: Convert to fraction form
    117,953.60/176,803.13 = 57,912.25/x
  3. Step 3: Cross multiply
    117,953.60x = 176,803.13 × 57,912.25
  4. Step 4: Simplify right side
    117,953.60x = 10,239,066,768.12
  5. Step 5: Solve for x
    x = 10,239,066,768.12/117,953.60
  6. Step 6: Final answer
    x = 86,805.88

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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.