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Finding the Fourth Proportional to 371,520.82, 557,208.69 and 118,733.50

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Solution

The fourth proportional to 371,520.82, 557,208.69 and 118,733.50 is: 178,077.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,520.82 : 557,208.69 = 118,733.50 : x
  2. Step 2: Convert to fraction form
    371,520.82/557,208.69 = 118,733.50/x
  3. Step 3: Cross multiply
    371,520.82x = 557,208.69 × 118,733.50
  4. Step 4: Simplify right side
    371,520.82x = 66,159,337,994.12
  5. Step 5: Solve for x
    x = 66,159,337,994.12/371,520.82
  6. Step 6: Final answer
    x = 178,077.07

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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.