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Finding the Fourth Proportional to 217,049.60, 325,574.40 and 133,068.80

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Solution

The fourth proportional to 217,049.60, 325,574.40 and 133,068.80 is: 199,603.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,049.60 : 325,574.40 = 133,068.80 : x
  2. Step 2: Convert to fraction form
    217,049.60/325,574.40 = 133,068.80/x
  3. Step 3: Cross multiply
    217,049.60x = 325,574.40 × 133,068.80
  4. Step 4: Simplify right side
    217,049.60x = 43,323,794,718.72
  5. Step 5: Solve for x
    x = 43,323,794,718.72/217,049.60
  6. Step 6: Final answer
    x = 199,603.20

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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.