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Finding the Fourth Proportional to 96,746.40, 144,940.40 and 55,069.60

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Solution

The fourth proportional to 96,746.40, 144,940.40 and 55,069.60 is: 82,502.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,746.40 : 144,940.40 = 55,069.60 : x
  2. Step 2: Convert to fraction form
    96,746.40/144,940.40 = 55,069.60/x
  3. Step 3: Cross multiply
    96,746.40x = 144,940.40 × 55,069.60
  4. Step 4: Simplify right side
    96,746.40x = 7,981,809,851.84
  5. Step 5: Solve for x
    x = 7,981,809,851.84/96,746.40
  6. Step 6: Final answer
    x = 82,502.40

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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.