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Finding the Fourth Proportional to 216,665.26, 325,005.08 and 74,509.13

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Solution

The fourth proportional to 216,665.26, 325,005.08 and 74,509.13 is: 111,766.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,665.26 : 325,005.08 = 74,509.13 : x
  2. Step 2: Convert to fraction form
    216,665.26/325,005.08 = 74,509.13/x
  3. Step 3: Cross multiply
    216,665.26x = 325,005.08 × 74,509.13
  4. Step 4: Simplify right side
    216,665.26x = 24,215,845,756.38
  5. Step 5: Solve for x
    x = 24,215,845,756.38/216,665.26
  6. Step 6: Final answer
    x = 111,766.17

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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.