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Finding the Fourth Proportional to 113,596.26, 156,768.12 and 65,864.58

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Solution

The fourth proportional to 113,596.26, 156,768.12 and 65,864.58 is: 90,896.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,596.26 : 156,768.12 = 65,864.58 : x
  2. Step 2: Convert to fraction form
    113,596.26/156,768.12 = 65,864.58/x
  3. Step 3: Cross multiply
    113,596.26x = 156,768.12 × 65,864.58
  4. Step 4: Simplify right side
    113,596.26x = 10,325,466,381.19
  5. Step 5: Solve for x
    x = 10,325,466,381.19/113,596.26
  6. Step 6: Final answer
    x = 90,896.18

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1.5x scale

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.