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Finding the Fourth Proportional to 89,068.93, 122,915.99 and 53,258.94

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Solution

The fourth proportional to 89,068.93, 122,915.99 and 53,258.94 is: 73,497.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,068.93 : 122,915.99 = 53,258.94 : x
  2. Step 2: Convert to fraction form
    89,068.93/122,915.99 = 53,258.94/x
  3. Step 3: Cross multiply
    89,068.93x = 122,915.99 × 53,258.94
  4. Step 4: Simplify right side
    89,068.93x = 6,546,375,930.53
  5. Step 5: Solve for x
    x = 6,546,375,930.53/89,068.93
  6. Step 6: Final answer
    x = 73,497.86

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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.