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Finding the Fourth Proportional to 270,689.59, 405,894.48 and 118,824.51

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Solution

The fourth proportional to 270,689.59, 405,894.48 and 118,824.51 is: 178,175.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,689.59 : 405,894.48 = 118,824.51 : x
  2. Step 2: Convert to fraction form
    270,689.59/405,894.48 = 118,824.51/x
  3. Step 3: Cross multiply
    270,689.59x = 405,894.48 × 118,824.51
  4. Step 4: Simplify right side
    270,689.59x = 48,230,212,697.70
  5. Step 5: Solve for x
    x = 48,230,212,697.70/270,689.59
  6. Step 6: Final answer
    x = 178,175.35

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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.