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Finding the Fourth Proportional to 217,203.06, 325,724.67 and 75,012.15

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Solution

The fourth proportional to 217,203.06, 325,724.67 and 75,012.15 is: 112,490.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,203.06 : 325,724.67 = 75,012.15 : x
  2. Step 2: Convert to fraction form
    217,203.06/325,724.67 = 75,012.15/x
  3. Step 3: Cross multiply
    217,203.06x = 325,724.67 × 75,012.15
  4. Step 4: Simplify right side
    217,203.06x = 24,433,307,804.74
  5. Step 5: Solve for x
    x = 24,433,307,804.74/217,203.06
  6. Step 6: Final answer
    x = 112,490.62

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1.5x scale

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.