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Finding the Fourth Proportional to 96,486.69, 144,728.73 and 43,164.57

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Solution

The fourth proportional to 96,486.69, 144,728.73 and 43,164.57 is: 64,746.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,486.69 : 144,728.73 = 43,164.57 : x
  2. Step 2: Convert to fraction form
    96,486.69/144,728.73 = 43,164.57/x
  3. Step 3: Cross multiply
    96,486.69x = 144,728.73 × 43,164.57
  4. Step 4: Simplify right side
    96,486.69x = 6,247,153,397.10
  5. Step 5: Solve for x
    x = 6,247,153,397.10/96,486.69
  6. Step 6: Final answer
    x = 64,746.27

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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.