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Finding the Fourth Proportional to 127,225, 190,837.58 and 39,673

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Solution

The fourth proportional to 127,225, 190,837.58 and 39,673 is: 59,509.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,225 : 190,837.58 = 39,673 : x
  2. Step 2: Convert to fraction form
    127,225/190,837.58 = 39,673/x
  3. Step 3: Cross multiply
    127,225x = 190,837.58 × 39,673
  4. Step 4: Simplify right side
    127,225x = 7,571,099,311.34
  5. Step 5: Solve for x
    x = 7,571,099,311.34/127,225
  6. Step 6: Final answer
    x = 59,509.52

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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.