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Finding the Fourth Proportional to 188,923.92, 260,706.60 and 108,293.64

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Solution

The fourth proportional to 188,923.92, 260,706.60 and 108,293.64 is: 149,440.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,923.92 : 260,706.60 = 108,293.64 : x
  2. Step 2: Convert to fraction form
    188,923.92/260,706.60 = 108,293.64/x
  3. Step 3: Cross multiply
    188,923.92x = 260,706.60 × 108,293.64
  4. Step 4: Simplify right side
    188,923.92x = 28,232,866,686.02
  5. Step 5: Solve for x
    x = 28,232,866,686.02/188,923.92
  6. Step 6: Final answer
    x = 149,440.40

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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.