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Finding the Fourth Proportional to 144,881.60, 216,976.80 and 144,881.60

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Solution

The fourth proportional to 144,881.60, 216,976.80 and 144,881.60 is: 216,976.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,881.60 : 216,976.80 = 144,881.60 : x
  2. Step 2: Convert to fraction form
    144,881.60/216,976.80 = 144,881.60/x
  3. Step 3: Cross multiply
    144,881.60x = 216,976.80 × 144,881.60
  4. Step 4: Simplify right side
    144,881.60x = 31,435,945,946.88
  5. Step 5: Solve for x
    x = 31,435,945,946.88/144,881.60
  6. Step 6: Final answer
    x = 216,976.80

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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.