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Finding the Fourth Proportional to 216,732.16, 325,132.94 and 66,937.24

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Solution

The fourth proportional to 216,732.16, 325,132.94 and 66,937.24 is: 100,416.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,732.16 : 325,132.94 = 66,937.24 : x
  2. Step 2: Convert to fraction form
    216,732.16/325,132.94 = 66,937.24/x
  3. Step 3: Cross multiply
    216,732.16x = 325,132.94 × 66,937.24
  4. Step 4: Simplify right side
    216,732.16x = 21,763,501,636.69
  5. Step 5: Solve for x
    x = 21,763,501,636.69/216,732.16
  6. Step 6: Final answer
    x = 100,416.58

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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.