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Finding the Fourth Proportional to 162,647.20, 243,910.11 and 56,001.02

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Solution

The fourth proportional to 162,647.20, 243,910.11 and 56,001.02 is: 83,980.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,647.20 : 243,910.11 = 56,001.02 : x
  2. Step 2: Convert to fraction form
    162,647.20/243,910.11 = 56,001.02/x
  3. Step 3: Cross multiply
    162,647.20x = 243,910.11 × 56,001.02
  4. Step 4: Simplify right side
    162,647.20x = 13,659,214,948.31
  5. Step 5: Solve for x
    x = 13,659,214,948.31/162,647.20
  6. Step 6: Final answer
    x = 83,980.64

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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.