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Finding the Fourth Proportional to 171,041.78, 256,604.51 and 120,539.34

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Solution

The fourth proportional to 171,041.78, 256,604.51 and 120,539.34 is: 180,838.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,041.78 : 256,604.51 = 120,539.34 : x
  2. Step 2: Convert to fraction form
    171,041.78/256,604.51 = 120,539.34/x
  3. Step 3: Cross multiply
    171,041.78x = 256,604.51 × 120,539.34
  4. Step 4: Simplify right side
    171,041.78x = 30,930,937,899.74
  5. Step 5: Solve for x
    x = 30,930,937,899.74/171,041.78
  6. Step 6: Final answer
    x = 180,838.50

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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.