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Finding the Fourth Proportional to 228,586.80, 342,880.20 and 194,761.20

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Solution

The fourth proportional to 228,586.80, 342,880.20 and 194,761.20 is: 292,141.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,586.80 : 342,880.20 = 194,761.20 : x
  2. Step 2: Convert to fraction form
    228,586.80/342,880.20 = 194,761.20/x
  3. Step 3: Cross multiply
    228,586.80x = 342,880.20 × 194,761.20
  4. Step 4: Simplify right side
    228,586.80x = 66,779,759,208.24
  5. Step 5: Solve for x
    x = 66,779,759,208.24/228,586.80
  6. Step 6: Final answer
    x = 292,141.80

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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.