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Finding the Fourth Proportional to 127,357.42, 190,773.60 and 74,606.98

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Solution

The fourth proportional to 127,357.42, 190,773.60 and 74,606.98 is: 111,756.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,357.42 : 190,773.60 = 74,606.98 : x
  2. Step 2: Convert to fraction form
    127,357.42/190,773.60 = 74,606.98/x
  3. Step 3: Cross multiply
    127,357.42x = 190,773.60 × 74,606.98
  4. Step 4: Simplify right side
    127,357.42x = 14,233,042,159.73
  5. Step 5: Solve for x
    x = 14,233,042,159.73/127,357.42
  6. Step 6: Final answer
    x = 111,756.68

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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.