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Finding the Fourth Proportional to 164,920.20, 247,445.10 and 65,063.40

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Solution

The fourth proportional to 164,920.20, 247,445.10 and 65,063.40 is: 97,620.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,920.20 : 247,445.10 = 65,063.40 : x
  2. Step 2: Convert to fraction form
    164,920.20/247,445.10 = 65,063.40/x
  3. Step 3: Cross multiply
    164,920.20x = 247,445.10 × 65,063.40
  4. Step 4: Simplify right side
    164,920.20x = 16,099,619,519.34
  5. Step 5: Solve for x
    x = 16,099,619,519.34/164,920.20
  6. Step 6: Final answer
    x = 97,620.66

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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.