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Finding the Fourth Proportional to 89,090.64, 122,945.08 and 48,806.92

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Solution

The fourth proportional to 89,090.64, 122,945.08 and 48,806.92 is: 67,353.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,090.64 : 122,945.08 = 48,806.92 : x
  2. Step 2: Convert to fraction form
    89,090.64/122,945.08 = 48,806.92/x
  3. Step 3: Cross multiply
    89,090.64x = 122,945.08 × 48,806.92
  4. Step 4: Simplify right side
    89,090.64x = 6,000,570,683.95
  5. Step 5: Solve for x
    x = 6,000,570,683.95/89,090.64
  6. Step 6: Final answer
    x = 67,353.55

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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.