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Finding the Fourth Proportional to 176,909.60, 265,380.60 and 71,706.80

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Solution

The fourth proportional to 176,909.60, 265,380.60 and 71,706.80 is: 107,566.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,909.60 : 265,380.60 = 71,706.80 : x
  2. Step 2: Convert to fraction form
    176,909.60/265,380.60 = 71,706.80/x
  3. Step 3: Cross multiply
    176,909.60x = 265,380.60 × 71,706.80
  4. Step 4: Simplify right side
    176,909.60x = 19,029,593,608.08
  5. Step 5: Solve for x
    x = 19,029,593,608.08/176,909.60
  6. Step 6: Final answer
    x = 107,566.77

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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.