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Finding the Fourth Proportional to 64,758.36, 97,098.66 and 43,918.68

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Solution

The fourth proportional to 64,758.36, 97,098.66 and 43,918.68 is: 65,851.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,758.36 : 97,098.66 = 43,918.68 : x
  2. Step 2: Convert to fraction form
    64,758.36/97,098.66 = 43,918.68/x
  3. Step 3: Cross multiply
    64,758.36x = 97,098.66 × 43,918.68
  4. Step 4: Simplify right side
    64,758.36x = 4,264,444,976.97
  5. Step 5: Solve for x
    x = 4,264,444,976.97/64,758.36
  6. Step 6: Final answer
    x = 65,851.65

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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.