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Finding the Fourth Proportional to 343,655.93, 474,247.71 and 190,694.72

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Solution

The fourth proportional to 343,655.93, 474,247.71 and 190,694.72 is: 263,160.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,655.93 : 474,247.71 = 190,694.72 : x
  2. Step 2: Convert to fraction form
    343,655.93/474,247.71 = 190,694.72/x
  3. Step 3: Cross multiply
    343,655.93x = 474,247.71 × 190,694.72
  4. Step 4: Simplify right side
    343,655.93x = 90,436,531,897.85
  5. Step 5: Solve for x
    x = 90,436,531,897.85/343,655.93
  6. Step 6: Final answer
    x = 263,160.11

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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.