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Finding the Fourth Proportional to 156,676.50, 216,004.77 and 124,518.49

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Solution

The fourth proportional to 156,676.50, 216,004.77 and 124,518.49 is: 171,669.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,676.50 : 216,004.77 = 124,518.49 : x
  2. Step 2: Convert to fraction form
    156,676.50/216,004.77 = 124,518.49/x
  3. Step 3: Cross multiply
    156,676.50x = 216,004.77 × 124,518.49
  4. Step 4: Simplify right side
    156,676.50x = 26,896,587,793.20
  5. Step 5: Solve for x
    x = 26,896,587,793.20/156,676.50
  6. Step 6: Final answer
    x = 171,669.57

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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.