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Finding the Fourth Proportional to 193,980.84, 290,649.42 and 67,554.24

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Solution

The fourth proportional to 193,980.84, 290,649.42 and 67,554.24 is: 101,219.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,980.84 : 290,649.42 = 67,554.24 : x
  2. Step 2: Convert to fraction form
    193,980.84/290,649.42 = 67,554.24/x
  3. Step 3: Cross multiply
    193,980.84x = 290,649.42 × 67,554.24
  4. Step 4: Simplify right side
    193,980.84x = 19,634,600,674.54
  5. Step 5: Solve for x
    x = 19,634,600,674.54/193,980.84
  6. Step 6: Final answer
    x = 101,219.28

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1.5x scale

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.