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Finding the Fourth Proportional to 91,360.98, 137,064.78 and 38,035.24

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Solution

The fourth proportional to 91,360.98, 137,064.78 and 38,035.24 is: 57,062.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,360.98 : 137,064.78 = 38,035.24 : x
  2. Step 2: Convert to fraction form
    91,360.98/137,064.78 = 38,035.24/x
  3. Step 3: Cross multiply
    91,360.98x = 137,064.78 × 38,035.24
  4. Step 4: Simplify right side
    91,360.98x = 5,213,291,802.85
  5. Step 5: Solve for x
    x = 5,213,291,802.85/91,360.98
  6. Step 6: Final answer
    x = 57,062.56

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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.