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Finding the Fourth Proportional to 216,998.16, 325,543.68 and 67,235.12

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Solution

The fourth proportional to 216,998.16, 325,543.68 and 67,235.12 is: 100,867.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,998.16 : 325,543.68 = 67,235.12 : x
  2. Step 2: Convert to fraction form
    216,998.16/325,543.68 = 67,235.12/x
  3. Step 3: Cross multiply
    216,998.16x = 325,543.68 × 67,235.12
  4. Step 4: Simplify right side
    216,998.16x = 21,887,968,390.04
  5. Step 5: Solve for x
    x = 21,887,968,390.04/216,998.16
  6. Step 6: Final answer
    x = 100,867.07

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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.