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Finding the Fourth Proportional to 118,732.89, 163,845.27 and 65,007.51

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Solution

The fourth proportional to 118,732.89, 163,845.27 and 65,007.51 is: 89,707.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,732.89 : 163,845.27 = 65,007.51 : x
  2. Step 2: Convert to fraction form
    118,732.89/163,845.27 = 65,007.51/x
  3. Step 3: Cross multiply
    118,732.89x = 163,845.27 × 65,007.51
  4. Step 4: Simplify right side
    118,732.89x = 10,651,173,027.98
  5. Step 5: Solve for x
    x = 10,651,173,027.98/118,732.89
  6. Step 6: Final answer
    x = 89,707.01

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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.