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Finding the Fourth Proportional to 252,658.62, 348,637.50 and 139,480.56

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Solution

The fourth proportional to 252,658.62, 348,637.50 and 139,480.56 is: 192,465.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,658.62 : 348,637.50 = 139,480.56 : x
  2. Step 2: Convert to fraction form
    252,658.62/348,637.50 = 139,480.56/x
  3. Step 3: Cross multiply
    252,658.62x = 348,637.50 × 139,480.56
  4. Step 4: Simplify right side
    252,658.62x = 48,628,153,737
  5. Step 5: Solve for x
    x = 48,628,153,737/252,658.62
  6. Step 6: Final answer
    x = 192,465.84

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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.