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Finding the Fourth Proportional to 71,973.30, 99,271.72 and 62,396.07

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Solution

The fourth proportional to 71,973.30, 99,271.72 and 62,396.07 is: 86,061.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,973.30 : 99,271.72 = 62,396.07 : x
  2. Step 2: Convert to fraction form
    71,973.30/99,271.72 = 62,396.07/x
  3. Step 3: Cross multiply
    71,973.30x = 99,271.72 × 62,396.07
  4. Step 4: Simplify right side
    71,973.30x = 6,194,165,190.14
  5. Step 5: Solve for x
    x = 6,194,165,190.14/71,973.30
  6. Step 6: Final answer
    x = 86,061.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.