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Finding the Fourth Proportional to 115,217.70, 172,935.90 and 70,930.95

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Solution

The fourth proportional to 115,217.70, 172,935.90 and 70,930.95 is: 106,463.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,217.70 : 172,935.90 = 70,930.95 : x
  2. Step 2: Convert to fraction form
    115,217.70/172,935.90 = 70,930.95/x
  3. Step 3: Cross multiply
    115,217.70x = 172,935.90 × 70,930.95
  4. Step 4: Simplify right side
    115,217.70x = 12,266,507,676.11
  5. Step 5: Solve for x
    x = 12,266,507,676.11/115,217.70
  6. Step 6: Final answer
    x = 106,463.74

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