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Finding the Fourth Proportional to 384,649.80, 577,037.40 and 118,410.36

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Solution

The fourth proportional to 384,649.80, 577,037.40 and 118,410.36 is: 177,634.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,649.80 : 577,037.40 = 118,410.36 : x
  2. Step 2: Convert to fraction form
    384,649.80/577,037.40 = 118,410.36/x
  3. Step 3: Cross multiply
    384,649.80x = 577,037.40 × 118,410.36
  4. Step 4: Simplify right side
    384,649.80x = 68,327,206,267.46
  5. Step 5: Solve for x
    x = 68,327,206,267.46/384,649.80
  6. Step 6: Final answer
    x = 177,634.84

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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.