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Finding the Fourth Proportional to 219,662.64, 303,131.16 and 124,165.98

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Solution

The fourth proportional to 219,662.64, 303,131.16 and 124,165.98 is: 171,347.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,662.64 : 303,131.16 = 124,165.98 : x
  2. Step 2: Convert to fraction form
    219,662.64/303,131.16 = 124,165.98/x
  3. Step 3: Cross multiply
    219,662.64x = 303,131.16 × 124,165.98
  4. Step 4: Simplify right side
    219,662.64x = 37,638,577,549.94
  5. Step 5: Solve for x
    x = 37,638,577,549.94/219,662.64
  6. Step 6: Final answer
    x = 171,347.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.