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Finding the Fourth Proportional to 72,051.98, 108,004.11 and 29,956.49

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Solution

The fourth proportional to 72,051.98, 108,004.11 and 29,956.49 is: 44,904.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,051.98 : 108,004.11 = 29,956.49 : x
  2. Step 2: Convert to fraction form
    72,051.98/108,004.11 = 29,956.49/x
  3. Step 3: Cross multiply
    72,051.98x = 108,004.11 × 29,956.49
  4. Step 4: Simplify right side
    72,051.98x = 3,235,423,501.15
  5. Step 5: Solve for x
    x = 3,235,423,501.15/72,051.98
  6. Step 6: Final answer
    x = 44,904.02

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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.