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Finding the Fourth Proportional to 156,672.54, 216,185.30 and 89,591.58

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Solution

The fourth proportional to 156,672.54, 216,185.30 and 89,591.58 is: 123,623.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,672.54 : 216,185.30 = 89,591.58 : x
  2. Step 2: Convert to fraction form
    156,672.54/216,185.30 = 89,591.58/x
  3. Step 3: Cross multiply
    156,672.54x = 216,185.30 × 89,591.58
  4. Step 4: Simplify right side
    156,672.54x = 19,368,382,599.77
  5. Step 5: Solve for x
    x = 19,368,382,599.77/156,672.54
  6. Step 6: Final answer
    x = 123,623.34

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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.