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Finding the Fourth Proportional to 40,837,511.80, 57,215,031.80 and 40,837,511.80

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Solution

The fourth proportional to 40,837,511.80, 57,215,031.80 and 40,837,511.80 is: 57,215,031.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,837,511.80 : 57,215,031.80 = 40,837,511.80 : x
  2. Step 2: Convert to fraction form
    40,837,511.80/57,215,031.80 = 40,837,511.80/x
  3. Step 3: Cross multiply
    40,837,511.80x = 57,215,031.80 × 40,837,511.80
  4. Step 4: Simplify right side
    40,837,511.80x = 2,336,519,536,269,875
  5. Step 5: Solve for x
    x = 2,336,519,536,269,875/40,837,511.80
  6. Step 6: Final answer
    x = 57,215,031.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.