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Finding the Fourth Proportional to 79,647.65, 119,404.50 and 53,271.89

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Solution

The fourth proportional to 79,647.65, 119,404.50 and 53,271.89 is: 79,863.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,647.65 : 119,404.50 = 53,271.89 : x
  2. Step 2: Convert to fraction form
    79,647.65/119,404.50 = 53,271.89/x
  3. Step 3: Cross multiply
    79,647.65x = 119,404.50 × 53,271.89
  4. Step 4: Simplify right side
    79,647.65x = 6,360,903,389.51
  5. Step 5: Solve for x
    x = 6,360,903,389.51/79,647.65
  6. Step 6: Final answer
    x = 79,863.04

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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.