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Finding the Fourth Proportional to 343,593.93, 474,143.56 and 190,630.49

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Solution

The fourth proportional to 343,593.93, 474,143.56 and 190,630.49 is: 263,061.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,593.93 : 474,143.56 = 190,630.49 : x
  2. Step 2: Convert to fraction form
    343,593.93/474,143.56 = 190,630.49/x
  3. Step 3: Cross multiply
    343,593.93x = 474,143.56 × 190,630.49
  4. Step 4: Simplify right side
    343,593.93x = 90,386,218,219.99
  5. Step 5: Solve for x
    x = 90,386,218,219.99/343,593.93
  6. Step 6: Final answer
    x = 263,061.16

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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.