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Finding the Fourth Proportional to 240,891.93, 361,362.51 and 83,119.95

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Solution

The fourth proportional to 240,891.93, 361,362.51 and 83,119.95 is: 124,688.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,891.93 : 361,362.51 = 83,119.95 : x
  2. Step 2: Convert to fraction form
    240,891.93/361,362.51 = 83,119.95/x
  3. Step 3: Cross multiply
    240,891.93x = 361,362.51 × 83,119.95
  4. Step 4: Simplify right side
    240,891.93x = 30,036,433,763.07
  5. Step 5: Solve for x
    x = 30,036,433,763.07/240,891.93
  6. Step 6: Final answer
    x = 124,688.42

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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.