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Finding the Fourth Proportional to 151,817.52, 209,507.40 and 84,749.52

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Solution

The fourth proportional to 151,817.52, 209,507.40 and 84,749.52 is: 116,953.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,817.52 : 209,507.40 = 84,749.52 : x
  2. Step 2: Convert to fraction form
    151,817.52/209,507.40 = 84,749.52/x
  3. Step 3: Cross multiply
    151,817.52x = 209,507.40 × 84,749.52
  4. Step 4: Simplify right side
    151,817.52x = 17,755,651,586.45
  5. Step 5: Solve for x
    x = 17,755,651,586.45/151,817.52
  6. Step 6: Final answer
    x = 116,953.90

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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.