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Finding the Fourth Proportional to 209,573.06, 314,389.16 and 67,370.68

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Solution

The fourth proportional to 209,573.06, 314,389.16 and 67,370.68 is: 101,065.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,573.06 : 314,389.16 = 67,370.68 : x
  2. Step 2: Convert to fraction form
    209,573.06/314,389.16 = 67,370.68/x
  3. Step 3: Cross multiply
    209,573.06x = 314,389.16 × 67,370.68
  4. Step 4: Simplify right side
    209,573.06x = 21,180,610,876.28
  5. Step 5: Solve for x
    x = 21,180,610,876.28/209,573.06
  6. Step 6: Final answer
    x = 101,065.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.