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Finding the Fourth Proportional to 70,730.56, 106,097.15 and 56,625.09

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Solution

The fourth proportional to 70,730.56, 106,097.15 and 56,625.09 is: 84,938.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,730.56 : 106,097.15 = 56,625.09 : x
  2. Step 2: Convert to fraction form
    70,730.56/106,097.15 = 56,625.09/x
  3. Step 3: Cross multiply
    70,730.56x = 106,097.15 × 56,625.09
  4. Step 4: Simplify right side
    70,730.56x = 6,007,760,667.49
  5. Step 5: Solve for x
    x = 6,007,760,667.49/70,730.56
  6. Step 6: Final answer
    x = 84,938.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.