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Finding the Fourth Proportional to 162,109.64, 223,710.44 and 94,143.31

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Solution

The fourth proportional to 162,109.64, 223,710.44 and 94,143.31 is: 129,917.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,109.64 : 223,710.44 = 94,143.31 : x
  2. Step 2: Convert to fraction form
    162,109.64/223,710.44 = 94,143.31/x
  3. Step 3: Cross multiply
    162,109.64x = 223,710.44 × 94,143.31
  4. Step 4: Simplify right side
    162,109.64x = 21,060,840,273.16
  5. Step 5: Solve for x
    x = 21,060,840,273.16/162,109.64
  6. Step 6: Final answer
    x = 129,917.26

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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.