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Finding the Fourth Proportional to 101,613.49, 140,235.22 and 56,305.68

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Solution

The fourth proportional to 101,613.49, 140,235.22 and 56,305.68 is: 77,706.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,613.49 : 140,235.22 = 56,305.68 : x
  2. Step 2: Convert to fraction form
    101,613.49/140,235.22 = 56,305.68/x
  3. Step 3: Cross multiply
    101,613.49x = 140,235.22 × 56,305.68
  4. Step 4: Simplify right side
    101,613.49x = 7,896,039,913.73
  5. Step 5: Solve for x
    x = 7,896,039,913.73/101,613.49
  6. Step 6: Final answer
    x = 77,706.61

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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.