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Finding the Fourth Proportional to 194,813.40, 292,220.10 and 186,940.20

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Solution

The fourth proportional to 194,813.40, 292,220.10 and 186,940.20 is: 280,410.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,813.40 : 292,220.10 = 186,940.20 : x
  2. Step 2: Convert to fraction form
    194,813.40/292,220.10 = 186,940.20/x
  3. Step 3: Cross multiply
    194,813.40x = 292,220.10 × 186,940.20
  4. Step 4: Simplify right side
    194,813.40x = 54,627,683,938.02
  5. Step 5: Solve for x
    x = 54,627,683,938.02/194,813.40
  6. Step 6: Final answer
    x = 280,410.30

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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.