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Finding the Fourth Proportional to 117,768.52, 176,244.54 and 112,869.64

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Solution

The fourth proportional to 117,768.52, 176,244.54 and 112,869.64 is: 168,913.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,768.52 : 176,244.54 = 112,869.64 : x
  2. Step 2: Convert to fraction form
    117,768.52/176,244.54 = 112,869.64/x
  3. Step 3: Cross multiply
    117,768.52x = 176,244.54 × 112,869.64
  4. Step 4: Simplify right side
    117,768.52x = 19,892,657,781.77
  5. Step 5: Solve for x
    x = 19,892,657,781.77/117,768.52
  6. Step 6: Final answer
    x = 168,913.20

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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.