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Finding the Fourth Proportional to 504,507.58, 756,739.50 and 125,420.38

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Solution

The fourth proportional to 504,507.58, 756,739.50 and 125,420.38 is: 188,125.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,507.58 : 756,739.50 = 125,420.38 : x
  2. Step 2: Convert to fraction form
    504,507.58/756,739.50 = 125,420.38/x
  3. Step 3: Cross multiply
    504,507.58x = 756,739.50 × 125,420.38
  4. Step 4: Simplify right side
    504,507.58x = 94,910,555,651.01
  5. Step 5: Solve for x
    x = 94,910,555,651.01/504,507.58
  6. Step 6: Final answer
    x = 188,125.13

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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.