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Finding the Fourth Proportional to 108,074.70, 162,002.70 and 63,678.60

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Solution

The fourth proportional to 108,074.70, 162,002.70 and 63,678.60 is: 95,453.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,074.70 : 162,002.70 = 63,678.60 : x
  2. Step 2: Convert to fraction form
    108,074.70/162,002.70 = 63,678.60/x
  3. Step 3: Cross multiply
    108,074.70x = 162,002.70 × 63,678.60
  4. Step 4: Simplify right side
    108,074.70x = 10,316,105,132.22
  5. Step 5: Solve for x
    x = 10,316,105,132.22/108,074.70
  6. Step 6: Final answer
    x = 95,453.47

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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.