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Finding the Fourth Proportional to 164,704.88, 247,188.54 and 64,890.20

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Solution

The fourth proportional to 164,704.88, 247,188.54 and 64,890.20 is: 97,387.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,704.88 : 247,188.54 = 64,890.20 : x
  2. Step 2: Convert to fraction form
    164,704.88/247,188.54 = 64,890.20/x
  3. Step 3: Cross multiply
    164,704.88x = 247,188.54 × 64,890.20
  4. Step 4: Simplify right side
    164,704.88x = 16,040,113,798.31
  5. Step 5: Solve for x
    x = 16,040,113,798.31/164,704.88
  6. Step 6: Final answer
    x = 97,387.00

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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.