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Finding the Fourth Proportional to 156,953.88, 216,596.88 and 85,333.68

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Solution

The fourth proportional to 156,953.88, 216,596.88 and 85,333.68 is: 117,760.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,953.88 : 216,596.88 = 85,333.68 : x
  2. Step 2: Convert to fraction form
    156,953.88/216,596.88 = 85,333.68/x
  3. Step 3: Cross multiply
    156,953.88x = 216,596.88 × 85,333.68
  4. Step 4: Simplify right side
    156,953.88x = 18,483,008,846.92
  5. Step 5: Solve for x
    x = 18,483,008,846.92/156,953.88
  6. Step 6: Final answer
    x = 117,760.76

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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.