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Finding the Fourth Proportional to 245,724.33, 368,586.21 and 77,259.39

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Solution

The fourth proportional to 245,724.33, 368,586.21 and 77,259.39 is: 115,889.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,724.33 : 368,586.21 = 77,259.39 : x
  2. Step 2: Convert to fraction form
    245,724.33/368,586.21 = 77,259.39/x
  3. Step 3: Cross multiply
    245,724.33x = 368,586.21 × 77,259.39
  4. Step 4: Simplify right side
    245,724.33x = 28,476,745,747.01
  5. Step 5: Solve for x
    x = 28,476,745,747.01/245,724.33
  6. Step 6: Final answer
    x = 115,889.00

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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.