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Finding the Fourth Proportional to 384,752.99, 577,191.50 and 118,513.25

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Solution

The fourth proportional to 384,752.99, 577,191.50 and 118,513.25 is: 177,788.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,752.99 : 577,191.50 = 118,513.25 : x
  2. Step 2: Convert to fraction form
    384,752.99/577,191.50 = 118,513.25/x
  3. Step 3: Cross multiply
    384,752.99x = 577,191.50 × 118,513.25
  4. Step 4: Simplify right side
    384,752.99x = 68,404,837,947.70
  5. Step 5: Solve for x
    x = 68,404,837,947.70/384,752.99
  6. Step 6: Final answer
    x = 177,788.97

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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.