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Finding the Fourth Proportional to 173,115.72, 238,939.50 and 101,518.80

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Solution

The fourth proportional to 173,115.72, 238,939.50 and 101,518.80 is: 140,119.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,115.72 : 238,939.50 = 101,518.80 : x
  2. Step 2: Convert to fraction form
    173,115.72/238,939.50 = 101,518.80/x
  3. Step 3: Cross multiply
    173,115.72x = 238,939.50 × 101,518.80
  4. Step 4: Simplify right side
    173,115.72x = 24,256,851,312.60
  5. Step 5: Solve for x
    x = 24,256,851,312.60/173,115.72
  6. Step 6: Final answer
    x = 140,119.29

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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.