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Finding the Fourth Proportional to 349,993.92, 525,099.36 and 147,694.80

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Solution

The fourth proportional to 349,993.92, 525,099.36 and 147,694.80 is: 221,587.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,993.92 : 525,099.36 = 147,694.80 : x
  2. Step 2: Convert to fraction form
    349,993.92/525,099.36 = 147,694.80/x
  3. Step 3: Cross multiply
    349,993.92x = 525,099.36 × 147,694.80
  4. Step 4: Simplify right side
    349,993.92x = 77,554,444,955.33
  5. Step 5: Solve for x
    x = 77,554,444,955.33/349,993.92
  6. Step 6: Final answer
    x = 221,587.98

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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.