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Finding the Fourth Proportional to 117,605.52, 176,427.72 and 54,488.70

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Solution

The fourth proportional to 117,605.52, 176,427.72 and 54,488.70 is: 81,742.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,605.52 : 176,427.72 = 54,488.70 : x
  2. Step 2: Convert to fraction form
    117,605.52/176,427.72 = 54,488.70/x
  3. Step 3: Cross multiply
    117,605.52x = 176,427.72 × 54,488.70
  4. Step 4: Simplify right side
    117,605.52x = 9,613,317,106.76
  5. Step 5: Solve for x
    x = 9,613,317,106.76/117,605.52
  6. Step 6: Final answer
    x = 81,742.06

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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.