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Finding the Fourth Proportional to 127,907.59, 191,889.06 and 49,021.87

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Solution

The fourth proportional to 127,907.59, 191,889.06 and 49,021.87 is: 73,543.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,907.59 : 191,889.06 = 49,021.87 : x
  2. Step 2: Convert to fraction form
    127,907.59/191,889.06 = 49,021.87/x
  3. Step 3: Cross multiply
    127,907.59x = 191,889.06 × 49,021.87
  4. Step 4: Simplify right side
    127,907.59x = 9,406,760,553.74
  5. Step 5: Solve for x
    x = 9,406,760,553.74/127,907.59
  6. Step 6: Final answer
    x = 73,543.41

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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.