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Finding the Fourth Proportional to 252,603.78, 348,591.52 and 137,881.96

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Solution

The fourth proportional to 252,603.78, 348,591.52 and 137,881.96 is: 190,276.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,603.78 : 348,591.52 = 137,881.96 : x
  2. Step 2: Convert to fraction form
    252,603.78/348,591.52 = 137,881.96/x
  3. Step 3: Cross multiply
    252,603.78x = 348,591.52 × 137,881.96
  4. Step 4: Simplify right side
    252,603.78x = 48,064,482,016.98
  5. Step 5: Solve for x
    x = 48,064,482,016.98/252,603.78
  6. Step 6: Final answer
    x = 190,276.18

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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.