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Finding the Fourth Proportional to 68,733.81, 94,624.32 and 61,647.93

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Solution

The fourth proportional to 68,733.81, 94,624.32 and 61,647.93 is: 84,869.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,733.81 : 94,624.32 = 61,647.93 : x
  2. Step 2: Convert to fraction form
    68,733.81/94,624.32 = 61,647.93/x
  3. Step 3: Cross multiply
    68,733.81x = 94,624.32 × 61,647.93
  4. Step 4: Simplify right side
    68,733.81x = 5,833,393,455.66
  5. Step 5: Solve for x
    x = 5,833,393,455.66/68,733.81
  6. Step 6: Final answer
    x = 84,869.35

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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.