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Finding the Fourth Proportional to 65,258.67, 90,100.34 and 50,124.26

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Solution

The fourth proportional to 65,258.67, 90,100.34 and 50,124.26 is: 69,204.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,258.67 : 90,100.34 = 50,124.26 : x
  2. Step 2: Convert to fraction form
    65,258.67/90,100.34 = 50,124.26/x
  3. Step 3: Cross multiply
    65,258.67x = 90,100.34 × 50,124.26
  4. Step 4: Simplify right side
    65,258.67x = 4,516,212,167.13
  5. Step 5: Solve for x
    x = 4,516,212,167.13/65,258.67
  6. Step 6: Final answer
    x = 69,204.78

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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.