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Finding the Fourth Proportional to 116,774.76, 161,149.34 and 66,473.76

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Solution

The fourth proportional to 116,774.76, 161,149.34 and 66,473.76 is: 91,733.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,774.76 : 161,149.34 = 66,473.76 : x
  2. Step 2: Convert to fraction form
    116,774.76/161,149.34 = 66,473.76/x
  3. Step 3: Cross multiply
    116,774.76x = 161,149.34 × 66,473.76
  4. Step 4: Simplify right side
    116,774.76x = 10,712,202,551.32
  5. Step 5: Solve for x
    x = 10,712,202,551.32/116,774.76
  6. Step 6: Final answer
    x = 91,733.89

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1.5x scale

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.