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Finding the Fourth Proportional to 279,176.37, 385,397.24 and 171,838.41

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Solution

The fourth proportional to 279,176.37, 385,397.24 and 171,838.41 is: 237,219.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,176.37 : 385,397.24 = 171,838.41 : x
  2. Step 2: Convert to fraction form
    279,176.37/385,397.24 = 171,838.41/x
  3. Step 3: Cross multiply
    279,176.37x = 385,397.24 × 171,838.41
  4. Step 4: Simplify right side
    279,176.37x = 66,226,048,080.80
  5. Step 5: Solve for x
    x = 66,226,048,080.80/279,176.37
  6. Step 6: Final answer
    x = 237,219.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.