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Finding the Fourth Proportional to 108,962.16, 150,378.72 and 73,226.64

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Solution

The fourth proportional to 108,962.16, 150,378.72 and 73,226.64 is: 101,060.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,962.16 : 150,378.72 = 73,226.64 : x
  2. Step 2: Convert to fraction form
    108,962.16/150,378.72 = 73,226.64/x
  3. Step 3: Cross multiply
    108,962.16x = 150,378.72 × 73,226.64
  4. Step 4: Simplify right side
    108,962.16x = 11,011,728,393.10
  5. Step 5: Solve for x
    x = 11,011,728,393.10/108,962.16
  6. Step 6: Final answer
    x = 101,060.11

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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.