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Finding the Fourth Proportional to 251,289.90, 376,393.57 and 117,970.38

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Solution

The fourth proportional to 251,289.90, 376,393.57 and 117,970.38 is: 176,701.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,289.90 : 376,393.57 = 117,970.38 : x
  2. Step 2: Convert to fraction form
    251,289.90/376,393.57 = 117,970.38/x
  3. Step 3: Cross multiply
    251,289.90x = 376,393.57 × 117,970.38
  4. Step 4: Simplify right side
    251,289.90x = 44,403,292,187.53
  5. Step 5: Solve for x
    x = 44,403,292,187.53/251,289.90
  6. Step 6: Final answer
    x = 176,701.46

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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.