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Finding the Fourth Proportional to 61,702.93, 85,158.49 and 35,508.37

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Solution

The fourth proportional to 61,702.93, 85,158.49 and 35,508.37 is: 49,006.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,702.93 : 85,158.49 = 35,508.37 : x
  2. Step 2: Convert to fraction form
    61,702.93/85,158.49 = 35,508.37/x
  3. Step 3: Cross multiply
    61,702.93x = 85,158.49 × 35,508.37
  4. Step 4: Simplify right side
    61,702.93x = 3,023,839,492.45
  5. Step 5: Solve for x
    x = 3,023,839,492.45/61,702.93
  6. Step 6: Final answer
    x = 49,006.42

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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.