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Finding the Fourth Proportional to 112,754.98, 155,533.53 and 74,514.88

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Solution

The fourth proportional to 112,754.98, 155,533.53 and 74,514.88 is: 102,785.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,754.98 : 155,533.53 = 74,514.88 : x
  2. Step 2: Convert to fraction form
    112,754.98/155,533.53 = 74,514.88/x
  3. Step 3: Cross multiply
    112,754.98x = 155,533.53 × 74,514.88
  4. Step 4: Simplify right side
    112,754.98x = 11,589,562,323.93
  5. Step 5: Solve for x
    x = 11,589,562,323.93/112,754.98
  6. Step 6: Final answer
    x = 102,785.37

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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.