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Finding the Fourth Proportional to 262,527.84, 393,830.40 and 84,975.84

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Solution

The fourth proportional to 262,527.84, 393,830.40 and 84,975.84 is: 127,476.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,527.84 : 393,830.40 = 84,975.84 : x
  2. Step 2: Convert to fraction form
    262,527.84/393,830.40 = 84,975.84/x
  3. Step 3: Cross multiply
    262,527.84x = 393,830.40 × 84,975.84
  4. Step 4: Simplify right side
    262,527.84x = 33,466,069,057.54
  5. Step 5: Solve for x
    x = 33,466,069,057.54/262,527.84
  6. Step 6: Final answer
    x = 127,476.27

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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.