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Finding the Fourth Proportional to 251,036.40, 376,554.60 and 84,824.40

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Solution

The fourth proportional to 251,036.40, 376,554.60 and 84,824.40 is: 127,236.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,036.40 : 376,554.60 = 84,824.40 : x
  2. Step 2: Convert to fraction form
    251,036.40/376,554.60 = 84,824.40/x
  3. Step 3: Cross multiply
    251,036.40x = 376,554.60 × 84,824.40
  4. Step 4: Simplify right side
    251,036.40x = 31,941,018,012.24
  5. Step 5: Solve for x
    x = 31,941,018,012.24/251,036.40
  6. Step 6: Final answer
    x = 127,236.60

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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.