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Finding the Fourth Proportional to 188,505.93, 260,138.21 and 107,960.16

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Solution

The fourth proportional to 188,505.93, 260,138.21 and 107,960.16 is: 148,985.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,505.93 : 260,138.21 = 107,960.16 : x
  2. Step 2: Convert to fraction form
    188,505.93/260,138.21 = 107,960.16/x
  3. Step 3: Cross multiply
    188,505.93x = 260,138.21 × 107,960.16
  4. Step 4: Simplify right side
    188,505.93x = 28,084,562,233.91
  5. Step 5: Solve for x
    x = 28,084,562,233.91/188,505.93
  6. Step 6: Final answer
    x = 148,985.03

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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.