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Finding the Fourth Proportional to 156,265.66, 215,646.87 and 84,646.27

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Solution

The fourth proportional to 156,265.66, 215,646.87 and 84,646.27 is: 116,811.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,265.66 : 215,646.87 = 84,646.27 : x
  2. Step 2: Convert to fraction form
    156,265.66/215,646.87 = 84,646.27/x
  3. Step 3: Cross multiply
    156,265.66x = 215,646.87 × 84,646.27
  4. Step 4: Simplify right side
    156,265.66x = 18,253,703,182.67
  5. Step 5: Solve for x
    x = 18,253,703,182.67/156,265.66
  6. Step 6: Final answer
    x = 116,811.99

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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.