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Finding the Fourth Proportional to 79,658.02, 109,915.21 and 45,660.25

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Solution

The fourth proportional to 79,658.02, 109,915.21 and 45,660.25 is: 63,003.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,658.02 : 109,915.21 = 45,660.25 : x
  2. Step 2: Convert to fraction form
    79,658.02/109,915.21 = 45,660.25/x
  3. Step 3: Cross multiply
    79,658.02x = 109,915.21 × 45,660.25
  4. Step 4: Simplify right side
    79,658.02x = 5,018,755,905.03
  5. Step 5: Solve for x
    x = 5,018,755,905.03/79,658.02
  6. Step 6: Final answer
    x = 63,003.77

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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.