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Finding the Fourth Proportional to 343,357.20, 515,027.70 and 94,039.20

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Solution

The fourth proportional to 343,357.20, 515,027.70 and 94,039.20 is: 141,056.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,357.20 : 515,027.70 = 94,039.20 : x
  2. Step 2: Convert to fraction form
    343,357.20/515,027.70 = 94,039.20/x
  3. Step 3: Cross multiply
    343,357.20x = 515,027.70 × 94,039.20
  4. Step 4: Simplify right side
    343,357.20x = 48,432,792,885.84
  5. Step 5: Solve for x
    x = 48,432,792,885.84/343,357.20
  6. Step 6: Final answer
    x = 141,056.58

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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.