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Finding the Fourth Proportional to 292,989.04, 404,322.64 and 165,669.16

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Solution

The fourth proportional to 292,989.04, 404,322.64 and 165,669.16 is: 228,622.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,989.04 : 404,322.64 = 165,669.16 : x
  2. Step 2: Convert to fraction form
    292,989.04/404,322.64 = 165,669.16/x
  3. Step 3: Cross multiply
    292,989.04x = 404,322.64 × 165,669.16
  4. Step 4: Simplify right side
    292,989.04x = 66,983,792,137.78
  5. Step 5: Solve for x
    x = 66,983,792,137.78/292,989.04
  6. Step 6: Final answer
    x = 228,622.18

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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.