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Finding the Fourth Proportional to 100,060.99, 138,085.26 and 54,738.00

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Solution

The fourth proportional to 100,060.99, 138,085.26 and 54,738.00 is: 75,539.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,060.99 : 138,085.26 = 54,738.00 : x
  2. Step 2: Convert to fraction form
    100,060.99/138,085.26 = 54,738.00/x
  3. Step 3: Cross multiply
    100,060.99x = 138,085.26 × 54,738.00
  4. Step 4: Simplify right side
    100,060.99x = 7,558,511,169.47
  5. Step 5: Solve for x
    x = 7,558,511,169.47/100,060.99
  6. Step 6: Final answer
    x = 75,539.04

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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.