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Finding the Fourth Proportional to 156,838.88, 216,494.78 and 96,490.44

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Solution

The fourth proportional to 156,838.88, 216,494.78 and 96,490.44 is: 133,191.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,838.88 : 216,494.78 = 96,490.44 : x
  2. Step 2: Convert to fraction form
    156,838.88/216,494.78 = 96,490.44/x
  3. Step 3: Cross multiply
    156,838.88x = 216,494.78 × 96,490.44
  4. Step 4: Simplify right side
    156,838.88x = 20,889,676,097.45
  5. Step 5: Solve for x
    x = 20,889,676,097.45/156,838.88
  6. Step 6: Final answer
    x = 133,191.95

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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.