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Finding the Fourth Proportional to 72,482.72, 100,027.26 and 43,798.37

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Solution

The fourth proportional to 72,482.72, 100,027.26 and 43,798.37 is: 60,442.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,482.72 : 100,027.26 = 43,798.37 : x
  2. Step 2: Convert to fraction form
    72,482.72/100,027.26 = 43,798.37/x
  3. Step 3: Cross multiply
    72,482.72x = 100,027.26 × 43,798.37
  4. Step 4: Simplify right side
    72,482.72x = 4,381,030,443.43
  5. Step 5: Solve for x
    x = 4,381,030,443.43/72,482.72
  6. Step 6: Final answer
    x = 60,442.42

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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.