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Finding the Fourth Proportional to 159,574.34, 239,396.70 and 47,263.40

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Solution

The fourth proportional to 159,574.34, 239,396.70 and 47,263.40 is: 70,905.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,574.34 : 239,396.70 = 47,263.40 : x
  2. Step 2: Convert to fraction form
    159,574.34/239,396.70 = 47,263.40/x
  3. Step 3: Cross multiply
    159,574.34x = 239,396.70 × 47,263.40
  4. Step 4: Simplify right side
    159,574.34x = 11,314,701,990.78
  5. Step 5: Solve for x
    x = 11,314,701,990.78/159,574.34
  6. Step 6: Final answer
    x = 70,905.52

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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.