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Finding the Fourth Proportional to 158,858.94, 238,334.54 and 64,040.20

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Solution

The fourth proportional to 158,858.94, 238,334.54 and 64,040.20 is: 96,078.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,858.94 : 238,334.54 = 64,040.20 : x
  2. Step 2: Convert to fraction form
    158,858.94/238,334.54 = 64,040.20/x
  3. Step 3: Cross multiply
    158,858.94x = 238,334.54 × 64,040.20
  4. Step 4: Simplify right side
    158,858.94x = 15,262,991,608.51
  5. Step 5: Solve for x
    x = 15,262,991,608.51/158,858.94
  6. Step 6: Final answer
    x = 96,078.90

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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.