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Finding the Fourth Proportional to 252,552.40, 348,515.40 and 139,366.96

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Solution

The fourth proportional to 252,552.40, 348,515.40 and 139,366.96 is: 192,322.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,552.40 : 348,515.40 = 139,366.96 : x
  2. Step 2: Convert to fraction form
    252,552.40/348,515.40 = 139,366.96/x
  3. Step 3: Cross multiply
    252,552.40x = 348,515.40 × 139,366.96
  4. Step 4: Simplify right side
    252,552.40x = 48,571,531,811.18
  5. Step 5: Solve for x
    x = 48,571,531,811.18/252,552.40
  6. Step 6: Final answer
    x = 192,322.59

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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.