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Finding the Fourth Proportional to 458,241.39, 687,422.39 and 170,013.77

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Solution

The fourth proportional to 458,241.39, 687,422.39 and 170,013.77 is: 255,043.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,241.39 : 687,422.39 = 170,013.77 : x
  2. Step 2: Convert to fraction form
    458,241.39/687,422.39 = 170,013.77/x
  3. Step 3: Cross multiply
    458,241.39x = 687,422.39 × 170,013.77
  4. Step 4: Simplify right side
    458,241.39x = 116,871,272,106.31
  5. Step 5: Solve for x
    x = 116,871,272,106.31/458,241.39
  6. Step 6: Final answer
    x = 255,043.03

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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.