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Finding the Fourth Proportional to 239,638.51, 330,702.29 and 132,208.53

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Solution

The fourth proportional to 239,638.51, 330,702.29 and 132,208.53 is: 182,448.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,638.51 : 330,702.29 = 132,208.53 : x
  2. Step 2: Convert to fraction form
    239,638.51/330,702.29 = 132,208.53/x
  3. Step 3: Cross multiply
    239,638.51x = 330,702.29 × 132,208.53
  4. Step 4: Simplify right side
    239,638.51x = 43,721,663,628.53
  5. Step 5: Solve for x
    x = 43,721,663,628.53/239,638.51
  6. Step 6: Final answer
    x = 182,448.40

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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.