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Finding the Fourth Proportional to 144,585.54, 216,843.37 and 55,782.40

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Solution

The fourth proportional to 144,585.54, 216,843.37 and 55,782.40 is: 83,660.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,585.54 : 216,843.37 = 55,782.40 : x
  2. Step 2: Convert to fraction form
    144,585.54/216,843.37 = 55,782.40/x
  3. Step 3: Cross multiply
    144,585.54x = 216,843.37 × 55,782.40
  4. Step 4: Simplify right side
    144,585.54x = 12,096,043,602.69
  5. Step 5: Solve for x
    x = 12,096,043,602.69/144,585.54
  6. Step 6: Final answer
    x = 83,660.12

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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.