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Finding the Fourth Proportional to 115,471.06, 159,347.01 and 64,482.37

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Solution

The fourth proportional to 115,471.06, 159,347.01 and 64,482.37 is: 88,983.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,471.06 : 159,347.01 = 64,482.37 : x
  2. Step 2: Convert to fraction form
    115,471.06/159,347.01 = 64,482.37/x
  3. Step 3: Cross multiply
    115,471.06x = 159,347.01 × 64,482.37
  4. Step 4: Simplify right side
    115,471.06x = 10,275,072,857.21
  5. Step 5: Solve for x
    x = 10,275,072,857.21/115,471.06
  6. Step 6: Final answer
    x = 88,983.97

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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.