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Finding the Fourth Proportional to 239,690.34, 359,418.87 and 127,424.34

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Solution

The fourth proportional to 239,690.34, 359,418.87 and 127,424.34 is: 191,074.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,690.34 : 359,418.87 = 127,424.34 : x
  2. Step 2: Convert to fraction form
    239,690.34/359,418.87 = 127,424.34/x
  3. Step 3: Cross multiply
    239,690.34x = 359,418.87 × 127,424.34
  4. Step 4: Simplify right side
    239,690.34x = 45,798,712,293.30
  5. Step 5: Solve for x
    x = 45,798,712,293.30/239,690.34
  6. Step 6: Final answer
    x = 191,074.50

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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.