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Finding the Fourth Proportional to 262,340.80, 392,919.12 and 183,805.60

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Solution

The fourth proportional to 262,340.80, 392,919.12 and 183,805.60 is: 275,293.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,340.80 : 392,919.12 = 183,805.60 : x
  2. Step 2: Convert to fraction form
    262,340.80/392,919.12 = 183,805.60/x
  3. Step 3: Cross multiply
    262,340.80x = 392,919.12 × 183,805.60
  4. Step 4: Simplify right side
    262,340.80x = 72,220,734,603.07
  5. Step 5: Solve for x
    x = 72,220,734,603.07/262,340.80
  6. Step 6: Final answer
    x = 275,293.57

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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.