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Finding the Fourth Proportional to 173,851.40, 260,777.10 and 85,118.60

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Solution

The fourth proportional to 173,851.40, 260,777.10 and 85,118.60 is: 127,677.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,851.40 : 260,777.10 = 85,118.60 : x
  2. Step 2: Convert to fraction form
    173,851.40/260,777.10 = 85,118.60/x
  3. Step 3: Cross multiply
    173,851.40x = 260,777.10 × 85,118.60
  4. Step 4: Simplify right side
    173,851.40x = 22,196,981,664.06
  5. Step 5: Solve for x
    x = 22,196,981,664.06/173,851.40
  6. Step 6: Final answer
    x = 127,677.90

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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.