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Finding the Fourth Proportional to 144,418.32, 216,656.64 and 50,989.68

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Solution

The fourth proportional to 144,418.32, 216,656.64 and 50,989.68 is: 76,494.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,418.32 : 216,656.64 = 50,989.68 : x
  2. Step 2: Convert to fraction form
    144,418.32/216,656.64 = 50,989.68/x
  3. Step 3: Cross multiply
    144,418.32x = 216,656.64 × 50,989.68
  4. Step 4: Simplify right side
    144,418.32x = 11,047,252,743.48
  5. Step 5: Solve for x
    x = 11,047,252,743.48/144,418.32
  6. Step 6: Final answer
    x = 76,494.82

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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.