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Finding the Fourth Proportional to 108,002.95, 162,004.43 and 66,473.35

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Solution

The fourth proportional to 108,002.95, 162,004.43 and 66,473.35 is: 99,710.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,002.95 : 162,004.43 = 66,473.35 : x
  2. Step 2: Convert to fraction form
    108,002.95/162,004.43 = 66,473.35/x
  3. Step 3: Cross multiply
    108,002.95x = 162,004.43 × 66,473.35
  4. Step 4: Simplify right side
    108,002.95x = 10,768,977,176.94
  5. Step 5: Solve for x
    x = 10,768,977,176.94/108,002.95
  6. Step 6: Final answer
    x = 99,710.03

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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.