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Finding the Fourth Proportional to 64,090.40, 88,436.16 and 35,791.04

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Solution

The fourth proportional to 64,090.40, 88,436.16 and 35,791.04 is: 49,386.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,090.40 : 88,436.16 = 35,791.04 : x
  2. Step 2: Convert to fraction form
    64,090.40/88,436.16 = 35,791.04/x
  3. Step 3: Cross multiply
    64,090.40x = 88,436.16 × 35,791.04
  4. Step 4: Simplify right side
    64,090.40x = 3,165,222,140.01
  5. Step 5: Solve for x
    x = 3,165,222,140.01/64,090.40
  6. Step 6: Final answer
    x = 49,386.84

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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.