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Finding the Fourth Proportional to 170,487.55, 255,722.10 and 52,158.88

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Solution

The fourth proportional to 170,487.55, 255,722.10 and 52,158.88 is: 78,235.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,487.55 : 255,722.10 = 52,158.88 : x
  2. Step 2: Convert to fraction form
    170,487.55/255,722.10 = 52,158.88/x
  3. Step 3: Cross multiply
    170,487.55x = 255,722.10 × 52,158.88
  4. Step 4: Simplify right side
    170,487.55x = 13,338,178,327.25
  5. Step 5: Solve for x
    x = 13,338,178,327.25/170,487.55
  6. Step 6: Final answer
    x = 78,235.50

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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.