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Finding the Fourth Proportional to 251,876.52, 347,477.14 and 170,178.40

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Solution

The fourth proportional to 251,876.52, 347,477.14 and 170,178.40 is: 234,770.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,876.52 : 347,477.14 = 170,178.40 : x
  2. Step 2: Convert to fraction form
    251,876.52/347,477.14 = 170,178.40/x
  3. Step 3: Cross multiply
    251,876.52x = 347,477.14 × 170,178.40
  4. Step 4: Simplify right side
    251,876.52x = 59,133,103,721.78
  5. Step 5: Solve for x
    x = 59,133,103,721.78/251,876.52
  6. Step 6: Final answer
    x = 234,770.21

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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.