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Finding the Fourth Proportional to 259,224.95, 357,730.43 and 139,992.95

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Solution

The fourth proportional to 259,224.95, 357,730.43 and 139,992.95 is: 193,190.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,224.95 : 357,730.43 = 139,992.95 : x
  2. Step 2: Convert to fraction form
    259,224.95/357,730.43 = 139,992.95/x
  3. Step 3: Cross multiply
    259,224.95x = 357,730.43 × 139,992.95
  4. Step 4: Simplify right side
    259,224.95x = 50,079,735,711.85
  5. Step 5: Solve for x
    x = 50,079,735,711.85/259,224.95
  6. Step 6: Final answer
    x = 193,190.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.