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Finding the Fourth Proportional to 115,665.76, 159,617.44 and 62,673.76

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Solution

The fourth proportional to 115,665.76, 159,617.44 and 62,673.76 is: 86,489.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,665.76 : 159,617.44 = 62,673.76 : x
  2. Step 2: Convert to fraction form
    115,665.76/159,617.44 = 62,673.76/x
  3. Step 3: Cross multiply
    115,665.76x = 159,617.44 × 62,673.76
  4. Step 4: Simplify right side
    115,665.76x = 10,003,825,126.37
  5. Step 5: Solve for x
    x = 10,003,825,126.37/115,665.76
  6. Step 6: Final answer
    x = 86,489.08

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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.