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Finding the Fourth Proportional to 251,428.63, 376,893.82 and 118,070.17

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Solution

The fourth proportional to 251,428.63, 376,893.82 and 118,070.17 is: 176,988.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,428.63 : 376,893.82 = 118,070.17 : x
  2. Step 2: Convert to fraction form
    251,428.63/376,893.82 = 118,070.17/x
  3. Step 3: Cross multiply
    251,428.63x = 376,893.82 × 118,070.17
  4. Step 4: Simplify right side
    251,428.63x = 44,499,917,399.35
  5. Step 5: Solve for x
    x = 44,499,917,399.35/251,428.63
  6. Step 6: Final answer
    x = 176,988.27

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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.