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Finding the Fourth Proportional to 295,915.30, 443,872.95 and 108,999.70

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Solution

The fourth proportional to 295,915.30, 443,872.95 and 108,999.70 is: 163,499.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,915.30 : 443,872.95 = 108,999.70 : x
  2. Step 2: Convert to fraction form
    295,915.30/443,872.95 = 108,999.70/x
  3. Step 3: Cross multiply
    295,915.30x = 443,872.95 × 108,999.70
  4. Step 4: Simplify right side
    295,915.30x = 48,382,018,388.12
  5. Step 5: Solve for x
    x = 48,382,018,388.12/295,915.30
  6. Step 6: Final answer
    x = 163,499.55

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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.