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Finding the Fourth Proportional to 371,351.52, 557,117.76 and 118,631.76

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Solution

The fourth proportional to 371,351.52, 557,117.76 and 118,631.76 is: 177,976.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,351.52 : 557,117.76 = 118,631.76 : x
  2. Step 2: Convert to fraction form
    371,351.52/557,117.76 = 118,631.76/x
  3. Step 3: Cross multiply
    371,351.52x = 557,117.76 × 118,631.76
  4. Step 4: Simplify right side
    371,351.52x = 66,091,860,396.06
  5. Step 5: Solve for x
    x = 66,091,860,396.06/371,351.52
  6. Step 6: Final answer
    x = 177,976.54

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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.