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Finding the Fourth Proportional to 113,588.91, 156,753.33 and 65,870.58

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Solution

The fourth proportional to 113,588.91, 156,753.33 and 65,870.58 is: 90,901.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,588.91 : 156,753.33 = 65,870.58 : x
  2. Step 2: Convert to fraction form
    113,588.91/156,753.33 = 65,870.58/x
  3. Step 3: Cross multiply
    113,588.91x = 156,753.33 × 65,870.58
  4. Step 4: Simplify right side
    113,588.91x = 10,325,432,764.03
  5. Step 5: Solve for x
    x = 10,325,432,764.03/113,588.91
  6. Step 6: Final answer
    x = 90,901.77

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.