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Finding the Fourth Proportional to 36,202,978.40, 54,299,218.80 and 10,641,322.40

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Solution

The fourth proportional to 36,202,978.40, 54,299,218.80 and 10,641,322.40 is: 15,960,440.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,202,978.40 : 54,299,218.80 = 10,641,322.40 : x
  2. Step 2: Convert to fraction form
    36,202,978.40/54,299,218.80 = 10,641,322.40/x
  3. Step 3: Cross multiply
    36,202,978.40x = 54,299,218.80 × 10,641,322.40
  4. Step 4: Simplify right side
    36,202,978.40x = 577,815,493,318,941.12
  5. Step 5: Solve for x
    x = 577,815,493,318,941.12/36,202,978.40
  6. Step 6: Final answer
    x = 15,960,440.79

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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.