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Finding the Fourth Proportional to 116,663.87, 160,994.30 and 65,676.48

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Solution

The fourth proportional to 116,663.87, 160,994.30 and 65,676.48 is: 90,632.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,663.87 : 160,994.30 = 65,676.48 : x
  2. Step 2: Convert to fraction form
    116,663.87/160,994.30 = 65,676.48/x
  3. Step 3: Cross multiply
    116,663.87x = 160,994.30 × 65,676.48
  4. Step 4: Simplify right side
    116,663.87x = 10,573,538,595.68
  5. Step 5: Solve for x
    x = 10,573,538,595.68/116,663.87
  6. Step 6: Final answer
    x = 90,632.51

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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.