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Finding the Fourth Proportional to 343,670.45, 474,264.24 and 190,731.72

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Solution

The fourth proportional to 343,670.45, 474,264.24 and 190,731.72 is: 263,209.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,670.45 : 474,264.24 = 190,731.72 : x
  2. Step 2: Convert to fraction form
    343,670.45/474,264.24 = 190,731.72/x
  3. Step 3: Cross multiply
    343,670.45x = 474,264.24 × 190,731.72
  4. Step 4: Simplify right side
    343,670.45x = 90,457,234,229.69
  5. Step 5: Solve for x
    x = 90,457,234,229.69/343,670.45
  6. Step 6: Final answer
    x = 263,209.23

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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.