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Finding the Fourth Proportional to 96,866.28, 133,669.20 and 56,591.40

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Solution

The fourth proportional to 96,866.28, 133,669.20 and 56,591.40 is: 78,092.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,866.28 : 133,669.20 = 56,591.40 : x
  2. Step 2: Convert to fraction form
    96,866.28/133,669.20 = 56,591.40/x
  3. Step 3: Cross multiply
    96,866.28x = 133,669.20 × 56,591.40
  4. Step 4: Simplify right side
    96,866.28x = 7,564,527,164.88
  5. Step 5: Solve for x
    x = 7,564,527,164.88/96,866.28
  6. Step 6: Final answer
    x = 78,092.47

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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.