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Finding the Fourth Proportional to 165,643.96, 228,640.26 and 94,071.64

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Solution

The fourth proportional to 165,643.96, 228,640.26 and 94,071.64 is: 129,848.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,643.96 : 228,640.26 = 94,071.64 : x
  2. Step 2: Convert to fraction form
    165,643.96/228,640.26 = 94,071.64/x
  3. Step 3: Cross multiply
    165,643.96x = 228,640.26 × 94,071.64
  4. Step 4: Simplify right side
    165,643.96x = 21,508,564,228.23
  5. Step 5: Solve for x
    x = 21,508,564,228.23/165,643.96
  6. Step 6: Final answer
    x = 129,848.16

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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.