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Finding the Fourth Proportional to 118,308.54, 176,923.77 and 88,343.82

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Solution

The fourth proportional to 118,308.54, 176,923.77 and 88,343.82 is: 132,113.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,308.54 : 176,923.77 = 88,343.82 : x
  2. Step 2: Convert to fraction form
    118,308.54/176,923.77 = 88,343.82/x
  3. Step 3: Cross multiply
    118,308.54x = 176,923.77 × 88,343.82
  4. Step 4: Simplify right side
    118,308.54x = 15,630,121,690.60
  5. Step 5: Solve for x
    x = 15,630,121,690.60/118,308.54
  6. Step 6: Final answer
    x = 132,113.22

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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.