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Finding the Fourth Proportional to 96,957.31, 133,690.77 and 68,267.80

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Solution

The fourth proportional to 96,957.31, 133,690.77 and 68,267.80 is: 94,131.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,957.31 : 133,690.77 = 68,267.80 : x
  2. Step 2: Convert to fraction form
    96,957.31/133,690.77 = 68,267.80/x
  3. Step 3: Cross multiply
    96,957.31x = 133,690.77 × 68,267.80
  4. Step 4: Simplify right side
    96,957.31x = 9,126,774,664.65
  5. Step 5: Solve for x
    x = 9,126,774,664.65/96,957.31
  6. Step 6: Final answer
    x = 94,131.89

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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.