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Finding the Fourth Proportional to 114,886.92, 172,105.74 and 75,323.28

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Solution

The fourth proportional to 114,886.92, 172,105.74 and 75,323.28 is: 112,837.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,886.92 : 172,105.74 = 75,323.28 : x
  2. Step 2: Convert to fraction form
    114,886.92/172,105.74 = 75,323.28/x
  3. Step 3: Cross multiply
    114,886.92x = 172,105.74 × 75,323.28
  4. Step 4: Simplify right side
    114,886.92x = 12,963,568,843.63
  5. Step 5: Solve for x
    x = 12,963,568,843.63/114,886.92
  6. Step 6: Final answer
    x = 112,837.64

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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.