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Finding the Fourth Proportional to 343,357.48, 515,065.50 and 94,039.72

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Solution

The fourth proportional to 343,357.48, 515,065.50 and 94,039.72 is: 141,067.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,357.48 : 515,065.50 = 94,039.72 : x
  2. Step 2: Convert to fraction form
    343,357.48/515,065.50 = 94,039.72/x
  3. Step 3: Cross multiply
    343,357.48x = 515,065.50 × 94,039.72
  4. Step 4: Simplify right side
    343,357.48x = 48,436,615,401.66
  5. Step 5: Solve for x
    x = 48,436,615,401.66/343,357.48
  6. Step 6: Final answer
    x = 141,067.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.