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Finding the Fourth Proportional to 315,156.00, 434,918.43 and 171,919.05

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Solution

The fourth proportional to 315,156.00, 434,918.43 and 171,919.05 is: 237,250.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,156.00 : 434,918.43 = 171,919.05 : x
  2. Step 2: Convert to fraction form
    315,156.00/434,918.43 = 171,919.05/x
  3. Step 3: Cross multiply
    315,156.00x = 434,918.43 × 171,919.05
  4. Step 4: Simplify right side
    315,156.00x = 74,770,761,682.15
  5. Step 5: Solve for x
    x = 74,770,761,682.15/315,156.00
  6. Step 6: Final answer
    x = 237,250.00

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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.