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Finding the Fourth Proportional to 121,960.63, 183,019.01 and 65,839.82

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Solution

The fourth proportional to 121,960.63, 183,019.01 and 65,839.82 is: 98,801.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,960.63 : 183,019.01 = 65,839.82 : x
  2. Step 2: Convert to fraction form
    121,960.63/183,019.01 = 65,839.82/x
  3. Step 3: Cross multiply
    121,960.63x = 183,019.01 × 65,839.82
  4. Step 4: Simplify right side
    121,960.63x = 12,049,937,430.68
  5. Step 5: Solve for x
    x = 12,049,937,430.68/121,960.63
  6. Step 6: Final answer
    x = 98,801.86

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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.