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Finding the Fourth Proportional to 117,467.61, 176,201.61 and 28,721.16

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Solution

The fourth proportional to 117,467.61, 176,201.61 and 28,721.16 is: 43,081.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,467.61 : 176,201.61 = 28,721.16 : x
  2. Step 2: Convert to fraction form
    117,467.61/176,201.61 = 28,721.16/x
  3. Step 3: Cross multiply
    117,467.61x = 176,201.61 × 28,721.16
  4. Step 4: Simplify right side
    117,467.61x = 5,060,714,633.07
  5. Step 5: Solve for x
    x = 5,060,714,633.07/117,467.61
  6. Step 6: Final answer
    x = 43,081.79

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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.