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Finding the Fourth Proportional to 117,777.52, 176,258.04 and 112,878.64

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Solution

The fourth proportional to 117,777.52, 176,258.04 and 112,878.64 is: 168,926.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,777.52 : 176,258.04 = 112,878.64 : x
  2. Step 2: Convert to fraction form
    117,777.52/176,258.04 = 112,878.64/x
  3. Step 3: Cross multiply
    117,777.52x = 176,258.04 × 112,878.64
  4. Step 4: Simplify right side
    117,777.52x = 19,895,767,844.27
  5. Step 5: Solve for x
    x = 19,895,767,844.27/117,777.52
  6. Step 6: Final answer
    x = 168,926.70

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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.