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Finding the Fourth Proportional to 252,503.73, 348,462.45 and 139,333.77

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Solution

The fourth proportional to 252,503.73, 348,462.45 and 139,333.77 is: 192,284.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,503.73 : 348,462.45 = 139,333.77 : x
  2. Step 2: Convert to fraction form
    252,503.73/348,462.45 = 139,333.77/x
  3. Step 3: Cross multiply
    252,503.73x = 348,462.45 × 139,333.77
  4. Step 4: Simplify right side
    252,503.73x = 48,552,586,861.94
  5. Step 5: Solve for x
    x = 48,552,586,861.94/252,503.73
  6. Step 6: Final answer
    x = 192,284.63

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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.