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Finding the Fourth Proportional to 65,410.90, 97,897.65 and 45,727.90

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Solution

The fourth proportional to 65,410.90, 97,897.65 and 45,727.90 is: 68,438.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,410.90 : 97,897.65 = 45,727.90 : x
  2. Step 2: Convert to fraction form
    65,410.90/97,897.65 = 45,727.90/x
  3. Step 3: Cross multiply
    65,410.90x = 97,897.65 × 45,727.90
  4. Step 4: Simplify right side
    65,410.90x = 4,476,653,949.44
  5. Step 5: Solve for x
    x = 4,476,653,949.44/65,410.90
  6. Step 6: Final answer
    x = 68,438.96

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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.