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Finding the Fourth Proportional to 343,992.90, 474,740.01 and 191,060.58

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Solution

The fourth proportional to 343,992.90, 474,740.01 and 191,060.58 is: 263,680.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,992.90 : 474,740.01 = 191,060.58 : x
  2. Step 2: Convert to fraction form
    343,992.90/474,740.01 = 191,060.58/x
  3. Step 3: Cross multiply
    343,992.90x = 474,740.01 × 191,060.58
  4. Step 4: Simplify right side
    343,992.90x = 90,704,101,659.81
  5. Step 5: Solve for x
    x = 90,704,101,659.81/343,992.90
  6. Step 6: Final answer
    x = 263,680.16

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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.