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Finding the Fourth Proportional to 476,781.42, 715,171.44 and 121,795.56

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Solution

The fourth proportional to 476,781.42, 715,171.44 and 121,795.56 is: 182,693.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,781.42 : 715,171.44 = 121,795.56 : x
  2. Step 2: Convert to fraction form
    476,781.42/715,171.44 = 121,795.56/x
  3. Step 3: Cross multiply
    476,781.42x = 715,171.44 × 121,795.56
  4. Step 4: Simplify right side
    476,781.42x = 87,104,706,030.81
  5. Step 5: Solve for x
    x = 87,104,706,030.81/476,781.42
  6. Step 6: Final answer
    x = 182,693.16

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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.