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Finding the Fourth Proportional to 319,003.65, 440,240.00 and 189,913.01

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Solution

The fourth proportional to 319,003.65, 440,240.00 and 189,913.01 is: 262,088.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,003.65 : 440,240.00 = 189,913.01 : x
  2. Step 2: Convert to fraction form
    319,003.65/440,240.00 = 189,913.01/x
  3. Step 3: Cross multiply
    319,003.65x = 440,240.00 × 189,913.01
  4. Step 4: Simplify right side
    319,003.65x = 83,607,300,371.64
  5. Step 5: Solve for x
    x = 83,607,300,371.64/319,003.65
  6. Step 6: Final answer
    x = 262,088.85

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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.