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Finding the Fourth Proportional to 500,888.75, 751,322.59 and 121,811.51

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Solution

The fourth proportional to 500,888.75, 751,322.59 and 121,811.51 is: 182,714.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,888.75 : 751,322.59 = 121,811.51 : x
  2. Step 2: Convert to fraction form
    500,888.75/751,322.59 = 121,811.51/x
  3. Step 3: Cross multiply
    500,888.75x = 751,322.59 × 121,811.51
  4. Step 4: Simplify right side
    500,888.75x = 91,519,740,758.79
  5. Step 5: Solve for x
    x = 91,519,740,758.79/500,888.75
  6. Step 6: Final answer
    x = 182,714.71

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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.