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Finding the Fourth Proportional to 147,889.50, 221,886.09 and 64,789.98

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Solution

The fourth proportional to 147,889.50, 221,886.09 and 64,789.98 is: 97,207.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,889.50 : 221,886.09 = 64,789.98 : x
  2. Step 2: Convert to fraction form
    147,889.50/221,886.09 = 64,789.98/x
  3. Step 3: Cross multiply
    147,889.50x = 221,886.09 × 64,789.98
  4. Step 4: Simplify right side
    147,889.50x = 14,375,995,333.38
  5. Step 5: Solve for x
    x = 14,375,995,333.38/147,889.50
  6. Step 6: Final answer
    x = 97,207.68

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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.