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Finding the Fourth Proportional to 188,469.48, 260,148.50 and 120,669.06

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Solution

The fourth proportional to 188,469.48, 260,148.50 and 120,669.06 is: 166,562.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,469.48 : 260,148.50 = 120,669.06 : x
  2. Step 2: Convert to fraction form
    188,469.48/260,148.50 = 120,669.06/x
  3. Step 3: Cross multiply
    188,469.48x = 260,148.50 × 120,669.06
  4. Step 4: Simplify right side
    188,469.48x = 31,391,874,955.41
  5. Step 5: Solve for x
    x = 31,391,874,955.41/188,469.48
  6. Step 6: Final answer
    x = 166,562.11

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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.