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Finding the Fourth Proportional to 252,441.86, 348,369.74 and 139,264.61

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Solution

The fourth proportional to 252,441.86, 348,369.74 and 139,264.61 is: 192,185.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,441.86 : 348,369.74 = 139,264.61 : x
  2. Step 2: Convert to fraction form
    252,441.86/348,369.74 = 139,264.61/x
  3. Step 3: Cross multiply
    252,441.86x = 348,369.74 × 139,264.61
  4. Step 4: Simplify right side
    252,441.86x = 48,515,574,060.97
  5. Step 5: Solve for x
    x = 48,515,574,060.97/252,441.86
  6. Step 6: Final answer
    x = 192,185.14

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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.