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Finding the Fourth Proportional to 101,855.48, 140,562.06 and 56,536.38

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Solution

The fourth proportional to 101,855.48, 140,562.06 and 56,536.38 is: 78,021.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,855.48 : 140,562.06 = 56,536.38 : x
  2. Step 2: Convert to fraction form
    101,855.48/140,562.06 = 56,536.38/x
  3. Step 3: Cross multiply
    101,855.48x = 140,562.06 × 56,536.38
  4. Step 4: Simplify right side
    101,855.48x = 7,946,870,037.74
  5. Step 5: Solve for x
    x = 7,946,870,037.74/101,855.48
  6. Step 6: Final answer
    x = 78,021.04

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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.