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Finding the Fourth Proportional to 329,971.47, 455,360.61 and 179,068.47

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Solution

The fourth proportional to 329,971.47, 455,360.61 and 179,068.47 is: 247,114.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,971.47 : 455,360.61 = 179,068.47 : x
  2. Step 2: Convert to fraction form
    329,971.47/455,360.61 = 179,068.47/x
  3. Step 3: Cross multiply
    329,971.47x = 455,360.61 × 179,068.47
  4. Step 4: Simplify right side
    329,971.47x = 81,540,727,730.97
  5. Step 5: Solve for x
    x = 81,540,727,730.97/329,971.47
  6. Step 6: Final answer
    x = 247,114.48

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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.