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Finding the Fourth Proportional to 156,092.65, 215,408.52 and 84,472.66

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Solution

The fourth proportional to 156,092.65, 215,408.52 and 84,472.66 is: 116,572.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,092.65 : 215,408.52 = 84,472.66 : x
  2. Step 2: Convert to fraction form
    156,092.65/215,408.52 = 84,472.66/x
  3. Step 3: Cross multiply
    156,092.65x = 215,408.52 × 84,472.66
  4. Step 4: Simplify right side
    156,092.65x = 18,196,130,671.06
  5. Step 5: Solve for x
    x = 18,196,130,671.06/156,092.65
  6. Step 6: Final answer
    x = 116,572.63

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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.