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Finding the Fourth Proportional to 172,764.87, 238,411.93 and 96,290.95

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Solution

The fourth proportional to 172,764.87, 238,411.93 and 96,290.95 is: 132,879.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,764.87 : 238,411.93 = 96,290.95 : x
  2. Step 2: Convert to fraction form
    172,764.87/238,411.93 = 96,290.95/x
  3. Step 3: Cross multiply
    172,764.87x = 238,411.93 × 96,290.95
  4. Step 4: Simplify right side
    172,764.87x = 22,956,911,963.20
  5. Step 5: Solve for x
    x = 22,956,911,963.20/172,764.87
  6. Step 6: Final answer
    x = 132,879.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.