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Finding the Fourth Proportional to 252,877.94, 348,976.05 and 139,693.94

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Solution

The fourth proportional to 252,877.94, 348,976.05 and 139,693.94 is: 192,780.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,877.94 : 348,976.05 = 139,693.94 : x
  2. Step 2: Convert to fraction form
    252,877.94/348,976.05 = 139,693.94/x
  3. Step 3: Cross multiply
    252,877.94x = 348,976.05 × 139,693.94
  4. Step 4: Simplify right side
    252,877.94x = 48,749,839,390.14
  5. Step 5: Solve for x
    x = 48,749,839,390.14/252,877.94
  6. Step 6: Final answer
    x = 192,780.12

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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.