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Finding the Fourth Proportional to 80,505.74, 120,801.14 and 58,501.01

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Solution

The fourth proportional to 80,505.74, 120,801.14 and 58,501.01 is: 87,782.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,505.74 : 120,801.14 = 58,501.01 : x
  2. Step 2: Convert to fraction form
    80,505.74/120,801.14 = 58,501.01/x
  3. Step 3: Cross multiply
    80,505.74x = 120,801.14 × 58,501.01
  4. Step 4: Simplify right side
    80,505.74x = 7,066,987,802.64
  5. Step 5: Solve for x
    x = 7,066,987,802.64/80,505.74
  6. Step 6: Final answer
    x = 87,782.41

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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.