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Finding the Fourth Proportional to 49,071.98, 73,607.79 and 12,135.98

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Solution

The fourth proportional to 49,071.98, 73,607.79 and 12,135.98 is: 18,203.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,071.98 : 73,607.79 = 12,135.98 : x
  2. Step 2: Convert to fraction form
    49,071.98/73,607.79 = 12,135.98/x
  3. Step 3: Cross multiply
    49,071.98x = 73,607.79 × 12,135.98
  4. Step 4: Simplify right side
    49,071.98x = 893,302,667.28
  5. Step 5: Solve for x
    x = 893,302,667.28/49,071.98
  6. Step 6: Final answer
    x = 18,203.93

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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.