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Finding the Fourth Proportional to 587,200.80, 881,146.80 and 213,261.60

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Solution

The fourth proportional to 587,200.80, 881,146.80 and 213,261.60 is: 320,017.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,200.80 : 881,146.80 = 213,261.60 : x
  2. Step 2: Convert to fraction form
    587,200.80/881,146.80 = 213,261.60/x
  3. Step 3: Cross multiply
    587,200.80x = 881,146.80 × 213,261.60
  4. Step 4: Simplify right side
    587,200.80x = 187,914,776,402.88
  5. Step 5: Solve for x
    x = 187,914,776,402.88/587,200.80
  6. Step 6: Final answer
    x = 320,017.92

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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.