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Finding the Fourth Proportional to 64,211.80, 96,288.90 and 29,133.40

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Solution

The fourth proportional to 64,211.80, 96,288.90 and 29,133.40 is: 43,687.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,211.80 : 96,288.90 = 29,133.40 : x
  2. Step 2: Convert to fraction form
    64,211.80/96,288.90 = 29,133.40/x
  3. Step 3: Cross multiply
    64,211.80x = 96,288.90 × 29,133.40
  4. Step 4: Simplify right side
    64,211.80x = 2,805,223,039.26
  5. Step 5: Solve for x
    x = 2,805,223,039.26/64,211.80
  6. Step 6: Final answer
    x = 43,687.03

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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.