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Finding the Fourth Proportional to 117,097.70, 161,595.95 and 63,383.76

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Solution

The fourth proportional to 117,097.70, 161,595.95 and 63,383.76 is: 87,470.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,097.70 : 161,595.95 = 63,383.76 : x
  2. Step 2: Convert to fraction form
    117,097.70/161,595.95 = 63,383.76/x
  3. Step 3: Cross multiply
    117,097.70x = 161,595.95 × 63,383.76
  4. Step 4: Simplify right side
    117,097.70x = 10,242,558,594.85
  5. Step 5: Solve for x
    x = 10,242,558,594.85/117,097.70
  6. Step 6: Final answer
    x = 87,470.20

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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.