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Finding the Fourth Proportional to 343,975.76, 474,670.60 and 191,023.66

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Solution

The fourth proportional to 343,975.76, 474,670.60 and 191,023.66 is: 263,603.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,975.76 : 474,670.60 = 191,023.66 : x
  2. Step 2: Convert to fraction form
    343,975.76/474,670.60 = 191,023.66/x
  3. Step 3: Cross multiply
    343,975.76x = 474,670.60 × 191,023.66
  4. Step 4: Simplify right side
    343,975.76x = 90,673,315,422.18
  5. Step 5: Solve for x
    x = 90,673,315,422.18/343,975.76
  6. Step 6: Final answer
    x = 263,603.80

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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.