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Finding the Fourth Proportional to 108,497.84, 162,621.01 and 64,161.88

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Solution

The fourth proportional to 108,497.84, 162,621.01 and 64,161.88 is: 96,168.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,497.84 : 162,621.01 = 64,161.88 : x
  2. Step 2: Convert to fraction form
    108,497.84/162,621.01 = 64,161.88/x
  3. Step 3: Cross multiply
    108,497.84x = 162,621.01 × 64,161.88
  4. Step 4: Simplify right side
    108,497.84x = 10,434,069,729.10
  5. Step 5: Solve for x
    x = 10,434,069,729.10/108,497.84
  6. Step 6: Final answer
    x = 96,168.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.