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Finding the Fourth Proportional to 96,586.40, 133,288.80 and 54,144.88

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Solution

The fourth proportional to 96,586.40, 133,288.80 and 54,144.88 is: 74,719.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,586.40 : 133,288.80 = 54,144.88 : x
  2. Step 2: Convert to fraction form
    96,586.40/133,288.80 = 54,144.88/x
  3. Step 3: Cross multiply
    96,586.40x = 133,288.80 × 54,144.88
  4. Step 4: Simplify right side
    96,586.40x = 7,216,906,081.34
  5. Step 5: Solve for x
    x = 7,216,906,081.34/96,586.40
  6. Step 6: Final answer
    x = 74,719.69

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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.