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Finding the Fourth Proportional to 170,520.87, 255,678.28 and 67,953.98

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Solution

The fourth proportional to 170,520.87, 255,678.28 and 67,953.98 is: 101,889.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,520.87 : 255,678.28 = 67,953.98 : x
  2. Step 2: Convert to fraction form
    170,520.87/255,678.28 = 67,953.98/x
  3. Step 3: Cross multiply
    170,520.87x = 255,678.28 × 67,953.98
  4. Step 4: Simplify right side
    170,520.87x = 17,374,356,725.55
  5. Step 5: Solve for x
    x = 17,374,356,725.55/170,520.87
  6. Step 6: Final answer
    x = 101,889.91

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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.