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Finding the Fourth Proportional to 176,911.60, 265,383.60 and 71,708.80

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Solution

The fourth proportional to 176,911.60, 265,383.60 and 71,708.80 is: 107,569.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,911.60 : 265,383.60 = 71,708.80 : x
  2. Step 2: Convert to fraction form
    176,911.60/265,383.60 = 71,708.80/x
  3. Step 3: Cross multiply
    176,911.60x = 265,383.60 × 71,708.80
  4. Step 4: Simplify right side
    176,911.60x = 19,030,339,495.68
  5. Step 5: Solve for x
    x = 19,030,339,495.68/176,911.60
  6. Step 6: Final answer
    x = 107,569.77

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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.