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Finding the Fourth Proportional to 72,357.06, 108,566.37 and 28,014.96

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Solution

The fourth proportional to 72,357.06, 108,566.37 and 28,014.96 is: 42,034.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,357.06 : 108,566.37 = 28,014.96 : x
  2. Step 2: Convert to fraction form
    72,357.06/108,566.37 = 28,014.96/x
  3. Step 3: Cross multiply
    72,357.06x = 108,566.37 × 28,014.96
  4. Step 4: Simplify right side
    72,357.06x = 3,041,482,512.90
  5. Step 5: Solve for x
    x = 3,041,482,512.90/72,357.06
  6. Step 6: Final answer
    x = 42,034.36

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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.