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Finding the Fourth Proportional to 127,951.37, 191,951.65 and 49,059.45

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Solution

The fourth proportional to 127,951.37, 191,951.65 and 49,059.45 is: 73,598.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,951.37 : 191,951.65 = 49,059.45 : x
  2. Step 2: Convert to fraction form
    127,951.37/191,951.65 = 49,059.45/x
  3. Step 3: Cross multiply
    127,951.37x = 191,951.65 × 49,059.45
  4. Step 4: Simplify right side
    127,951.37x = 9,417,042,304.96
  5. Step 5: Solve for x
    x = 9,417,042,304.96/127,951.37
  6. Step 6: Final answer
    x = 73,598.60

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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.