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Finding the Fourth Proportional to 189,735.92, 261,863.08 and 113,258.25

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Solution

The fourth proportional to 189,735.92, 261,863.08 and 113,258.25 is: 156,312.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,735.92 : 261,863.08 = 113,258.25 : x
  2. Step 2: Convert to fraction form
    189,735.92/261,863.08 = 113,258.25/x
  3. Step 3: Cross multiply
    189,735.92x = 261,863.08 × 113,258.25
  4. Step 4: Simplify right side
    189,735.92x = 29,658,153,897.26
  5. Step 5: Solve for x
    x = 29,658,153,897.26/189,735.92
  6. Step 6: Final answer
    x = 156,312.81

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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.