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Finding the Fourth Proportional to 101,181.62, 139,623.48 and 55,852.34

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Solution

The fourth proportional to 101,181.62, 139,623.48 and 55,852.34 is: 77,072.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,181.62 : 139,623.48 = 55,852.34 : x
  2. Step 2: Convert to fraction form
    101,181.62/139,623.48 = 55,852.34/x
  3. Step 3: Cross multiply
    101,181.62x = 139,623.48 × 55,852.34
  4. Step 4: Simplify right side
    101,181.62x = 7,798,297,378.83
  5. Step 5: Solve for x
    x = 7,798,297,378.83/101,181.62
  6. Step 6: Final answer
    x = 77,072.27

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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.