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Finding the Fourth Proportional to 79,048.98, 118,564.72 and 19,884.65

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Solution

The fourth proportional to 79,048.98, 118,564.72 and 19,884.65 is: 29,824.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,048.98 : 118,564.72 = 19,884.65 : x
  2. Step 2: Convert to fraction form
    79,048.98/118,564.72 = 19,884.65/x
  3. Step 3: Cross multiply
    79,048.98x = 118,564.72 × 19,884.65
  4. Step 4: Simplify right side
    79,048.98x = 2,357,617,317.01
  5. Step 5: Solve for x
    x = 2,357,617,317.01/79,048.98
  6. Step 6: Final answer
    x = 29,824.77

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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.