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Finding the Fourth Proportional to 503,348.09, 755,023.69 and 124,268.87

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Solution

The fourth proportional to 503,348.09, 755,023.69 and 124,268.87 is: 186,403.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,348.09 : 755,023.69 = 124,268.87 : x
  2. Step 2: Convert to fraction form
    503,348.09/755,023.69 = 124,268.87/x
  3. Step 3: Cross multiply
    503,348.09x = 755,023.69 × 124,268.87
  4. Step 4: Simplify right side
    503,348.09x = 93,825,940,779.53
  5. Step 5: Solve for x
    x = 93,825,940,779.53/503,348.09
  6. Step 6: Final answer
    x = 186,403.69

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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.