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Finding the Fourth Proportional to 343,219.92, 473,619.60 and 190,256.64

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Solution

The fourth proportional to 343,219.92, 473,619.60 and 190,256.64 is: 262,540.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,219.92 : 473,619.60 = 190,256.64 : x
  2. Step 2: Convert to fraction form
    343,219.92/473,619.60 = 190,256.64/x
  3. Step 3: Cross multiply
    343,219.92x = 473,619.60 × 190,256.64
  4. Step 4: Simplify right side
    343,219.92x = 90,109,273,734.14
  5. Step 5: Solve for x
    x = 90,109,273,734.14/343,219.92
  6. Step 6: Final answer
    x = 262,540.92

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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.