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Finding the Fourth Proportional to 582,212.81, 873,319.22 and 161,488.69

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Solution

The fourth proportional to 582,212.81, 873,319.22 and 161,488.69 is: 242,233.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,212.81 : 873,319.22 = 161,488.69 : x
  2. Step 2: Convert to fraction form
    582,212.81/873,319.22 = 161,488.69/x
  3. Step 3: Cross multiply
    582,212.81x = 873,319.22 × 161,488.69
  4. Step 4: Simplify right side
    582,212.81x = 141,031,174,404.46
  5. Step 5: Solve for x
    x = 141,031,174,404.46/582,212.81
  6. Step 6: Final answer
    x = 242,233.03

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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.