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Finding the Fourth Proportional to 496,015.40, 744,051.90 and 141,055.40

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Solution

The fourth proportional to 496,015.40, 744,051.90 and 141,055.40 is: 211,591.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,015.40 : 744,051.90 = 141,055.40 : x
  2. Step 2: Convert to fraction form
    496,015.40/744,051.90 = 141,055.40/x
  3. Step 3: Cross multiply
    496,015.40x = 744,051.90 × 141,055.40
  4. Step 4: Simplify right side
    496,015.40x = 104,952,538,375.26
  5. Step 5: Solve for x
    x = 104,952,538,375.26/496,015.40
  6. Step 6: Final answer
    x = 211,591.29

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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.