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Finding the Fourth Proportional to 216,492.24, 324,738.48 and 142,083.12

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Solution

The fourth proportional to 216,492.24, 324,738.48 and 142,083.12 is: 213,124.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,492.24 : 324,738.48 = 142,083.12 : x
  2. Step 2: Convert to fraction form
    216,492.24/324,738.48 = 142,083.12/x
  3. Step 3: Cross multiply
    216,492.24x = 324,738.48 × 142,083.12
  4. Step 4: Simplify right side
    216,492.24x = 46,139,856,422.46
  5. Step 5: Solve for x
    x = 46,139,856,422.46/216,492.24
  6. Step 6: Final answer
    x = 213,124.76

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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.