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Finding the Fourth Proportional to 115,588.40, 173,406.90 and 65,627.60

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Solution

The fourth proportional to 115,588.40, 173,406.90 and 65,627.60 is: 98,455.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,588.40 : 173,406.90 = 65,627.60 : x
  2. Step 2: Convert to fraction form
    115,588.40/173,406.90 = 65,627.60/x
  3. Step 3: Cross multiply
    115,588.40x = 173,406.90 × 65,627.60
  4. Step 4: Simplify right side
    115,588.40x = 11,380,278,670.44
  5. Step 5: Solve for x
    x = 11,380,278,670.44/115,588.40
  6. Step 6: Final answer
    x = 98,455.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.