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Finding the Fourth Proportional to 168,985.80, 253,470.60 and 56,667.60

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Solution

The fourth proportional to 168,985.80, 253,470.60 and 56,667.60 is: 84,998.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,985.80 : 253,470.60 = 56,667.60 : x
  2. Step 2: Convert to fraction form
    168,985.80/253,470.60 = 56,667.60/x
  3. Step 3: Cross multiply
    168,985.80x = 253,470.60 × 56,667.60
  4. Step 4: Simplify right side
    168,985.80x = 14,363,570,572.56
  5. Step 5: Solve for x
    x = 14,363,570,572.56/168,985.80
  6. Step 6: Final answer
    x = 84,998.68

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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.