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Finding the Fourth Proportional to 127,456.79, 175,898.94 and 84,362.03

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Solution

The fourth proportional to 127,456.79, 175,898.94 and 84,362.03 is: 116,425.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,456.79 : 175,898.94 = 84,362.03 : x
  2. Step 2: Convert to fraction form
    127,456.79/175,898.94 = 84,362.03/x
  3. Step 3: Cross multiply
    127,456.79x = 175,898.94 × 84,362.03
  4. Step 4: Simplify right side
    127,456.79x = 14,839,190,773.75
  5. Step 5: Solve for x
    x = 14,839,190,773.75/127,456.79
  6. Step 6: Final answer
    x = 116,425.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.