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Finding the Fourth Proportional to 156,273.91, 215,657.98 and 84,653.91

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Solution

The fourth proportional to 156,273.91, 215,657.98 and 84,653.91 is: 116,822.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,273.91 : 215,657.98 = 84,653.91 : x
  2. Step 2: Convert to fraction form
    156,273.91/215,657.98 = 84,653.91/x
  3. Step 3: Cross multiply
    156,273.91x = 215,657.98 × 84,653.91
  4. Step 4: Simplify right side
    156,273.91x = 18,256,291,018.07
  5. Step 5: Solve for x
    x = 18,256,291,018.07/156,273.91
  6. Step 6: Final answer
    x = 116,822.39

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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.