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Finding the Fourth Proportional to 156,883.99, 235,269.03 and 85,859.11

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Solution

The fourth proportional to 156,883.99, 235,269.03 and 85,859.11 is: 128,757.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,883.99 : 235,269.03 = 85,859.11 : x
  2. Step 2: Convert to fraction form
    156,883.99/235,269.03 = 85,859.11/x
  3. Step 3: Cross multiply
    156,883.99x = 235,269.03 × 85,859.11
  4. Step 4: Simplify right side
    156,883.99x = 20,199,990,562.64
  5. Step 5: Solve for x
    x = 20,199,990,562.64/156,883.99
  6. Step 6: Final answer
    x = 128,757.50

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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.