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Finding the Fourth Proportional to 108,956.32, 150,390.96 and 65,935.84

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Solution

The fourth proportional to 108,956.32, 150,390.96 and 65,935.84 is: 91,010.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,956.32 : 150,390.96 = 65,935.84 : x
  2. Step 2: Convert to fraction form
    108,956.32/150,390.96 = 65,935.84/x
  3. Step 3: Cross multiply
    108,956.32x = 150,390.96 × 65,935.84
  4. Step 4: Simplify right side
    108,956.32x = 9,916,154,276.01
  5. Step 5: Solve for x
    x = 9,916,154,276.01/108,956.32
  6. Step 6: Final answer
    x = 91,010.36

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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.