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Finding the Fourth Proportional to 156,273.15, 215,657.48 and 84,652.95

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Solution

The fourth proportional to 156,273.15, 215,657.48 and 84,652.95 is: 116,821.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,273.15 : 215,657.48 = 84,652.95 : x
  2. Step 2: Convert to fraction form
    156,273.15/215,657.48 = 84,652.95/x
  3. Step 3: Cross multiply
    156,273.15x = 215,657.48 × 84,652.95
  4. Step 4: Simplify right side
    156,273.15x = 18,256,041,448.30
  5. Step 5: Solve for x
    x = 18,256,041,448.30/156,273.15
  6. Step 6: Final answer
    x = 116,821.36

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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.