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Finding the Fourth Proportional to 342,382.12, 513,571.74 and 93,063.40

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Solution

The fourth proportional to 342,382.12, 513,571.74 and 93,063.40 is: 139,594.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,382.12 : 513,571.74 = 93,063.40 : x
  2. Step 2: Convert to fraction form
    342,382.12/513,571.74 = 93,063.40/x
  3. Step 3: Cross multiply
    342,382.12x = 513,571.74 × 93,063.40
  4. Step 4: Simplify right side
    342,382.12x = 47,794,732,268.32
  5. Step 5: Solve for x
    x = 47,794,732,268.32/342,382.12
  6. Step 6: Final answer
    x = 139,594.71

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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.