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Finding the Fourth Proportional to 188,655.53, 260,343.36 and 106,999.34

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Solution

The fourth proportional to 188,655.53, 260,343.36 and 106,999.34 is: 147,658.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,655.53 : 260,343.36 = 106,999.34 : x
  2. Step 2: Convert to fraction form
    188,655.53/260,343.36 = 106,999.34/x
  3. Step 3: Cross multiply
    188,655.53x = 260,343.36 × 106,999.34
  4. Step 4: Simplify right side
    188,655.53x = 27,856,566,391.67
  5. Step 5: Solve for x
    x = 27,856,566,391.67/188,655.53
  6. Step 6: Final answer
    x = 147,658.37

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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.