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Finding the Fourth Proportional to 117,734.80, 162,473.70 and 64,019.92

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Solution

The fourth proportional to 117,734.80, 162,473.70 and 64,019.92 is: 88,347.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,734.80 : 162,473.70 = 64,019.92 : x
  2. Step 2: Convert to fraction form
    117,734.80/162,473.70 = 64,019.92/x
  3. Step 3: Cross multiply
    117,734.80x = 162,473.70 × 64,019.92
  4. Step 4: Simplify right side
    117,734.80x = 10,401,553,276.10
  5. Step 5: Solve for x
    x = 10,401,553,276.10/117,734.80
  6. Step 6: Final answer
    x = 88,347.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.