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Finding the Fourth Proportional to 194,907.63, 268,972.55 and 105,483.63

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Solution

The fourth proportional to 194,907.63, 268,972.55 and 105,483.63 is: 145,567.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,907.63 : 268,972.55 = 105,483.63 : x
  2. Step 2: Convert to fraction form
    194,907.63/268,972.55 = 105,483.63/x
  3. Step 3: Cross multiply
    194,907.63x = 268,972.55 × 105,483.63
  4. Step 4: Simplify right side
    194,907.63x = 28,372,200,944.36
  5. Step 5: Solve for x
    x = 28,372,200,944.36/194,907.63
  6. Step 6: Final answer
    x = 145,567.42

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1.5x scale

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.