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Finding the Fourth Proportional to 158,701.16, 218,734.88 and 151,227.09

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Solution

The fourth proportional to 158,701.16, 218,734.88 and 151,227.09 is: 208,433.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,701.16 : 218,734.88 = 151,227.09 : x
  2. Step 2: Convert to fraction form
    158,701.16/218,734.88 = 151,227.09/x
  3. Step 3: Cross multiply
    158,701.16x = 218,734.88 × 151,227.09
  4. Step 4: Simplify right side
    158,701.16x = 33,078,638,627.76
  5. Step 5: Solve for x
    x = 33,078,638,627.76/158,701.16
  6. Step 6: Final answer
    x = 208,433.51

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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.