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Finding the Fourth Proportional to 65,881.08, 98,920.02 and 64,896.93

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Solution

The fourth proportional to 65,881.08, 98,920.02 and 64,896.93 is: 97,442.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,881.08 : 98,920.02 = 64,896.93 : x
  2. Step 2: Convert to fraction form
    65,881.08/98,920.02 = 64,896.93/x
  3. Step 3: Cross multiply
    65,881.08x = 98,920.02 × 64,896.93
  4. Step 4: Simplify right side
    65,881.08x = 6,419,605,613.54
  5. Step 5: Solve for x
    x = 6,419,605,613.54/65,881.08
  6. Step 6: Final answer
    x = 97,442.33

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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.