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Finding the Fourth Proportional to 144,415.32, 216,661.62 and 44,571.48

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Solution

The fourth proportional to 144,415.32, 216,661.62 and 44,571.48 is: 66,869.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,415.32 : 216,661.62 = 44,571.48 : x
  2. Step 2: Convert to fraction form
    144,415.32/216,661.62 = 44,571.48/x
  3. Step 3: Cross multiply
    144,415.32x = 216,661.62 × 44,571.48
  4. Step 4: Simplify right side
    144,415.32x = 9,656,929,062.60
  5. Step 5: Solve for x
    x = 9,656,929,062.60/144,415.32
  6. Step 6: Final answer
    x = 66,869.15

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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.