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Finding the Fourth Proportional to 72,927.26, 109,347.10 and 28,501.06

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Solution

The fourth proportional to 72,927.26, 109,347.10 and 28,501.06 is: 42,734.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,927.26 : 109,347.10 = 28,501.06 : x
  2. Step 2: Convert to fraction form
    72,927.26/109,347.10 = 28,501.06/x
  3. Step 3: Cross multiply
    72,927.26x = 109,347.10 × 28,501.06
  4. Step 4: Simplify right side
    72,927.26x = 3,116,508,257.93
  5. Step 5: Solve for x
    x = 3,116,508,257.93/72,927.26
  6. Step 6: Final answer
    x = 42,734.48

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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.