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Finding the Fourth Proportional to 156,866.64, 216,533.10 and 96,518.22

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Solution

The fourth proportional to 156,866.64, 216,533.10 and 96,518.22 is: 133,230.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,866.64 : 216,533.10 = 96,518.22 : x
  2. Step 2: Convert to fraction form
    156,866.64/216,533.10 = 96,518.22/x
  3. Step 3: Cross multiply
    156,866.64x = 216,533.10 × 96,518.22
  4. Step 4: Simplify right side
    156,866.64x = 20,899,389,383.08
  5. Step 5: Solve for x
    x = 20,899,389,383.08/156,866.64
  6. Step 6: Final answer
    x = 133,230.30

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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.