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Finding the Fourth Proportional to 144,392.61, 216,625.86 and 55,622.28

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Solution

The fourth proportional to 144,392.61, 216,625.86 and 55,622.28 is: 83,447.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,392.61 : 216,625.86 = 55,622.28 : x
  2. Step 2: Convert to fraction form
    144,392.61/216,625.86 = 55,622.28/x
  3. Step 3: Cross multiply
    144,392.61x = 216,625.86 × 55,622.28
  4. Step 4: Simplify right side
    144,392.61x = 12,049,224,240.16
  5. Step 5: Solve for x
    x = 12,049,224,240.16/144,392.61
  6. Step 6: Final answer
    x = 83,447.65

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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.