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Finding the Fourth Proportional to 194,812.40, 292,218.60 and 186,939.20

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Solution

The fourth proportional to 194,812.40, 292,218.60 and 186,939.20 is: 280,408.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,812.40 : 292,218.60 = 186,939.20 : x
  2. Step 2: Convert to fraction form
    194,812.40/292,218.60 = 186,939.20/x
  3. Step 3: Cross multiply
    194,812.40x = 292,218.60 × 186,939.20
  4. Step 4: Simplify right side
    194,812.40x = 54,627,111,309.12
  5. Step 5: Solve for x
    x = 54,627,111,309.12/194,812.40
  6. Step 6: Final answer
    x = 280,408.80

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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.