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Finding the Fourth Proportional to 135,726.83, 203,590.25 and 73,518.83

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Solution

The fourth proportional to 135,726.83, 203,590.25 and 73,518.83 is: 110,278.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,726.83 : 203,590.25 = 73,518.83 : x
  2. Step 2: Convert to fraction form
    135,726.83/203,590.25 = 73,518.83/x
  3. Step 3: Cross multiply
    135,726.83x = 203,590.25 × 73,518.83
  4. Step 4: Simplify right side
    135,726.83x = 14,967,716,979.41
  5. Step 5: Solve for x
    x = 14,967,716,979.41/135,726.83
  6. Step 6: Final answer
    x = 110,278.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.