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Finding the Fourth Proportional to 68,495.59, 102,702.32 and 28,466.29

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Solution

The fourth proportional to 68,495.59, 102,702.32 and 28,466.29 is: 42,682.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,495.59 : 102,702.32 = 28,466.29 : x
  2. Step 2: Convert to fraction form
    68,495.59/102,702.32 = 28,466.29/x
  3. Step 3: Cross multiply
    68,495.59x = 102,702.32 × 28,466.29
  4. Step 4: Simplify right side
    68,495.59x = 2,923,553,368.95
  5. Step 5: Solve for x
    x = 2,923,553,368.95/68,495.59
  6. Step 6: Final answer
    x = 42,682.36

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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.