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Finding the Fourth Proportional to 68,158.74, 102,258.98 and 34,902.35

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Solution

The fourth proportional to 68,158.74, 102,258.98 and 34,902.35 is: 52,364.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,158.74 : 102,258.98 = 34,902.35 : x
  2. Step 2: Convert to fraction form
    68,158.74/102,258.98 = 34,902.35/x
  3. Step 3: Cross multiply
    68,158.74x = 102,258.98 × 34,902.35
  4. Step 4: Simplify right side
    68,158.74x = 3,569,078,710.60
  5. Step 5: Solve for x
    x = 3,569,078,710.60/68,158.74
  6. Step 6: Final answer
    x = 52,364.21

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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.