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Finding the Fourth Proportional to 118,711.92, 178,085.52 and 34,472.82

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Solution

The fourth proportional to 118,711.92, 178,085.52 and 34,472.82 is: 51,714.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,711.92 : 178,085.52 = 34,472.82 : x
  2. Step 2: Convert to fraction form
    118,711.92/178,085.52 = 34,472.82/x
  3. Step 3: Cross multiply
    118,711.92x = 178,085.52 × 34,472.82
  4. Step 4: Simplify right side
    118,711.92x = 6,139,110,075.57
  5. Step 5: Solve for x
    x = 6,139,110,075.57/118,711.92
  6. Step 6: Final answer
    x = 51,714.35

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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.