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Finding the Fourth Proportional to 343,655.22, 474,246.78 and 190,694.01

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Solution

The fourth proportional to 343,655.22, 474,246.78 and 190,694.01 is: 263,159.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,655.22 : 474,246.78 = 190,694.01 : x
  2. Step 2: Convert to fraction form
    343,655.22/474,246.78 = 190,694.01/x
  3. Step 3: Cross multiply
    343,655.22x = 474,246.78 × 190,694.01
  4. Step 4: Simplify right side
    343,655.22x = 90,436,020,207.79
  5. Step 5: Solve for x
    x = 90,436,020,207.79/343,655.22
  6. Step 6: Final answer
    x = 263,159.16

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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.