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Finding the Fourth Proportional to 188,638.92, 260,316.60 and 106,982.16

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Solution

The fourth proportional to 188,638.92, 260,316.60 and 106,982.16 is: 147,632.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,638.92 : 260,316.60 = 106,982.16 : x
  2. Step 2: Convert to fraction form
    188,638.92/260,316.60 = 106,982.16/x
  3. Step 3: Cross multiply
    188,638.92x = 260,316.60 × 106,982.16
  4. Step 4: Simplify right side
    188,638.92x = 27,849,232,151.86
  5. Step 5: Solve for x
    x = 27,849,232,151.86/188,638.92
  6. Step 6: Final answer
    x = 147,632.48

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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.