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Finding the Fourth Proportional to 156,604.96, 216,111.12 and 84,981.92

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Solution

The fourth proportional to 156,604.96, 216,111.12 and 84,981.92 is: 117,273.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,604.96 : 216,111.12 = 84,981.92 : x
  2. Step 2: Convert to fraction form
    156,604.96/216,111.12 = 84,981.92/x
  3. Step 3: Cross multiply
    156,604.96x = 216,111.12 × 84,981.92
  4. Step 4: Simplify right side
    156,604.96x = 18,365,537,910.95
  5. Step 5: Solve for x
    x = 18,365,537,910.95/156,604.96
  6. Step 6: Final answer
    x = 117,273.03

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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.