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Finding the Fourth Proportional to 118,230.18, 176,929.20 and 73,877.82

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Solution

The fourth proportional to 118,230.18, 176,929.20 and 73,877.82 is: 110,556.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,230.18 : 176,929.20 = 73,877.82 : x
  2. Step 2: Convert to fraction form
    118,230.18/176,929.20 = 73,877.82/x
  3. Step 3: Cross multiply
    118,230.18x = 176,929.20 × 73,877.82
  4. Step 4: Simplify right side
    118,230.18x = 13,071,143,590.34
  5. Step 5: Solve for x
    x = 13,071,143,590.34/118,230.18
  6. Step 6: Final answer
    x = 110,556.74

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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.