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Finding the Fourth Proportional to 88,668.94, 122,363.14 and 56,837.90

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Solution

The fourth proportional to 88,668.94, 122,363.14 and 56,837.90 is: 78,436.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,668.94 : 122,363.14 = 56,837.90 : x
  2. Step 2: Convert to fraction form
    88,668.94/122,363.14 = 56,837.90/x
  3. Step 3: Cross multiply
    88,668.94x = 122,363.14 × 56,837.90
  4. Step 4: Simplify right side
    88,668.94x = 6,954,863,915.01
  5. Step 5: Solve for x
    x = 6,954,863,915.01/88,668.94
  6. Step 6: Final answer
    x = 78,436.30

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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.