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Finding the Fourth Proportional to 252,230.94, 348,081.12 and 139,057.74

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Solution

The fourth proportional to 252,230.94, 348,081.12 and 139,057.74 is: 191,901.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,230.94 : 348,081.12 = 139,057.74 : x
  2. Step 2: Convert to fraction form
    252,230.94/348,081.12 = 139,057.74/x
  3. Step 3: Cross multiply
    252,230.94x = 348,081.12 × 139,057.74
  4. Step 4: Simplify right side
    252,230.94x = 48,403,373,883.87
  5. Step 5: Solve for x
    x = 48,403,373,883.87/252,230.94
  6. Step 6: Final answer
    x = 191,901.02

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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.