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Finding the Fourth Proportional to 343,650.47, 474,240.22 and 190,689.26

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Solution

The fourth proportional to 343,650.47, 474,240.22 and 190,689.26 is: 263,152.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,650.47 : 474,240.22 = 190,689.26 : x
  2. Step 2: Convert to fraction form
    343,650.47/474,240.22 = 190,689.26/x
  3. Step 3: Cross multiply
    343,650.47x = 474,240.22 × 190,689.26
  4. Step 4: Simplify right side
    343,650.47x = 90,432,513,766.11
  5. Step 5: Solve for x
    x = 90,432,513,766.11/343,650.47
  6. Step 6: Final answer
    x = 263,152.60

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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.