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Finding the Fourth Proportional to 91,212, 136,818 and 24,647.02

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Solution

The fourth proportional to 91,212, 136,818 and 24,647.02 is: 36,970.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,212 : 136,818 = 24,647.02 : x
  2. Step 2: Convert to fraction form
    91,212/136,818 = 24,647.02/x
  3. Step 3: Cross multiply
    91,212x = 136,818 × 24,647.02
  4. Step 4: Simplify right side
    91,212x = 3,372,155,982.36
  5. Step 5: Solve for x
    x = 3,372,155,982.36/91,212
  6. Step 6: Final answer
    x = 36,970.53

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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.