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Finding the Fourth Proportional to 158,907.44, 238,360.95 and 40,578.86

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Solution

The fourth proportional to 158,907.44, 238,360.95 and 40,578.86 is: 60,868.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,907.44 : 238,360.95 = 40,578.86 : x
  2. Step 2: Convert to fraction form
    158,907.44/238,360.95 = 40,578.86/x
  3. Step 3: Cross multiply
    158,907.44x = 238,360.95 × 40,578.86
  4. Step 4: Simplify right side
    158,907.44x = 9,672,414,427.71
  5. Step 5: Solve for x
    x = 9,672,414,427.71/158,907.44
  6. Step 6: Final answer
    x = 60,868.23

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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.