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Finding the Fourth Proportional to 91,691.51, 137,537.78 and 41,736.67

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Solution

The fourth proportional to 91,691.51, 137,537.78 and 41,736.67 is: 62,605.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,691.51 : 137,537.78 = 41,736.67 : x
  2. Step 2: Convert to fraction form
    91,691.51/137,537.78 = 41,736.67/x
  3. Step 3: Cross multiply
    91,691.51x = 137,537.78 × 41,736.67
  4. Step 4: Simplify right side
    91,691.51x = 5,740,369,533.01
  5. Step 5: Solve for x
    x = 5,740,369,533.01/91,691.51
  6. Step 6: Final answer
    x = 62,605.24

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1.5x scale

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.