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Finding the Fourth Proportional to 256,349.95, 384,524.94 and 167,678.03

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Solution

The fourth proportional to 256,349.95, 384,524.94 and 167,678.03 is: 251,517.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,349.95 : 384,524.94 = 167,678.03 : x
  2. Step 2: Convert to fraction form
    256,349.95/384,524.94 = 167,678.03/x
  3. Step 3: Cross multiply
    256,349.95x = 384,524.94 × 167,678.03
  4. Step 4: Simplify right side
    256,349.95x = 64,476,384,425.07
  5. Step 5: Solve for x
    x = 64,476,384,425.07/256,349.95
  6. Step 6: Final answer
    x = 251,517.05

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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.