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Finding the Fourth Proportional to 101,170.37, 139,607.96 and 55,841.09

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Solution

The fourth proportional to 101,170.37, 139,607.96 and 55,841.09 is: 77,056.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,170.37 : 139,607.96 = 55,841.09 : x
  2. Step 2: Convert to fraction form
    101,170.37/139,607.96 = 55,841.09/x
  3. Step 3: Cross multiply
    101,170.37x = 139,607.96 × 55,841.09
  4. Step 4: Simplify right side
    101,170.37x = 7,795,859,681.83
  5. Step 5: Solve for x
    x = 7,795,859,681.83/101,170.37
  6. Step 6: Final answer
    x = 77,056.75

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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.