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Finding the Fourth Proportional to 140,915.72, 211,256.46 and 65,999.24

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Solution

The fourth proportional to 140,915.72, 211,256.46 and 65,999.24 is: 98,944.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,915.72 : 211,256.46 = 65,999.24 : x
  2. Step 2: Convert to fraction form
    140,915.72/211,256.46 = 65,999.24/x
  3. Step 3: Cross multiply
    140,915.72x = 211,256.46 × 65,999.24
  4. Step 4: Simplify right side
    140,915.72x = 13,942,765,805.09
  5. Step 5: Solve for x
    x = 13,942,765,805.09/140,915.72
  6. Step 6: Final answer
    x = 98,944.01

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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.