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Finding the Fourth Proportional to 176,919.60, 265,023.72 and 87,903.60

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Solution

The fourth proportional to 176,919.60, 265,023.72 and 87,903.60 is: 131,678.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,919.60 : 265,023.72 = 87,903.60 : x
  2. Step 2: Convert to fraction form
    176,919.60/265,023.72 = 87,903.60/x
  3. Step 3: Cross multiply
    176,919.60x = 265,023.72 × 87,903.60
  4. Step 4: Simplify right side
    176,919.60x = 23,296,539,073.39
  5. Step 5: Solve for x
    x = 23,296,539,073.39/176,919.60
  6. Step 6: Final answer
    x = 131,678.68

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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.