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Finding the Fourth Proportional to 127,099.01, 190,649.87 and 38,353.30

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Solution

The fourth proportional to 127,099.01, 190,649.87 and 38,353.30 is: 57,530.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,099.01 : 190,649.87 = 38,353.30 : x
  2. Step 2: Convert to fraction form
    127,099.01/190,649.87 = 38,353.30/x
  3. Step 3: Cross multiply
    127,099.01x = 190,649.87 × 38,353.30
  4. Step 4: Simplify right side
    127,099.01x = 7,312,051,659.07
  5. Step 5: Solve for x
    x = 7,312,051,659.07/127,099.01
  6. Step 6: Final answer
    x = 57,530.36

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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.