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Finding the Fourth Proportional to 115,182.43, 158,964.66 and 64,199.81

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Solution

The fourth proportional to 115,182.43, 158,964.66 and 64,199.81 is: 88,602.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,182.43 : 158,964.66 = 64,199.81 : x
  2. Step 2: Convert to fraction form
    115,182.43/158,964.66 = 64,199.81/x
  3. Step 3: Cross multiply
    115,182.43x = 158,964.66 × 64,199.81
  4. Step 4: Simplify right side
    115,182.43x = 10,205,501,366.13
  5. Step 5: Solve for x
    x = 10,205,501,366.13/115,182.43
  6. Step 6: Final answer
    x = 88,602.94

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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.