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Finding the Fourth Proportional to 117,470.70, 176,090.22 and 75,230.82

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Solution

The fourth proportional to 117,470.70, 176,090.22 and 75,230.82 is: 112,772.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,470.70 : 176,090.22 = 75,230.82 : x
  2. Step 2: Convert to fraction form
    117,470.70/176,090.22 = 75,230.82/x
  3. Step 3: Cross multiply
    117,470.70x = 176,090.22 × 75,230.82
  4. Step 4: Simplify right side
    117,470.70x = 13,247,411,644.58
  5. Step 5: Solve for x
    x = 13,247,411,644.58/117,470.70
  6. Step 6: Final answer
    x = 112,772.05

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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.