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Finding the Fourth Proportional to 108,006.30, 162,009.45 and 92,972.70

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Solution

The fourth proportional to 108,006.30, 162,009.45 and 92,972.70 is: 139,459.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,006.30 : 162,009.45 = 92,972.70 : x
  2. Step 2: Convert to fraction form
    108,006.30/162,009.45 = 92,972.70/x
  3. Step 3: Cross multiply
    108,006.30x = 162,009.45 × 92,972.70
  4. Step 4: Simplify right side
    108,006.30x = 15,062,455,992.02
  5. Step 5: Solve for x
    x = 15,062,455,992.02/108,006.30
  6. Step 6: Final answer
    x = 139,459.05

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1.5x scale

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.