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Finding the Fourth Proportional to 136,841.56, 205,105.74 and 61,848.52

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Solution

The fourth proportional to 136,841.56, 205,105.74 and 61,848.52 is: 92,702.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,841.56 : 205,105.74 = 61,848.52 : x
  2. Step 2: Convert to fraction form
    136,841.56/205,105.74 = 61,848.52/x
  3. Step 3: Cross multiply
    136,841.56x = 205,105.74 × 61,848.52
  4. Step 4: Simplify right side
    136,841.56x = 12,685,486,462.50
  5. Step 5: Solve for x
    x = 12,685,486,462.50/136,841.56
  6. Step 6: Final answer
    x = 92,702.00

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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.