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Finding the Fourth Proportional to 91,704, 137,562.48 and 36,300

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Solution

The fourth proportional to 91,704, 137,562.48 and 36,300 is: 54,452.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,704 : 137,562.48 = 36,300 : x
  2. Step 2: Convert to fraction form
    91,704/137,562.48 = 36,300/x
  3. Step 3: Cross multiply
    91,704x = 137,562.48 × 36,300
  4. Step 4: Simplify right side
    91,704x = 4,993,518,024
  5. Step 5: Solve for x
    x = 4,993,518,024/91,704
  6. Step 6: Final answer
    x = 54,452.57

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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.