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Finding the Fourth Proportional to 85,219.98, 117,607.59 and 47,494.50

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Solution

The fourth proportional to 85,219.98, 117,607.59 and 47,494.50 is: 65,544.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,219.98 : 117,607.59 = 47,494.50 : x
  2. Step 2: Convert to fraction form
    85,219.98/117,607.59 = 47,494.50/x
  3. Step 3: Cross multiply
    85,219.98x = 117,607.59 × 47,494.50
  4. Step 4: Simplify right side
    85,219.98x = 5,585,713,683.26
  5. Step 5: Solve for x
    x = 5,585,713,683.26/85,219.98
  6. Step 6: Final answer
    x = 65,544.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.