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Finding the Fourth Proportional to 587,771.20, 881,656.80 and 144,539.20

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Solution

The fourth proportional to 587,771.20, 881,656.80 and 144,539.20 is: 216,808.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,771.20 : 881,656.80 = 144,539.20 : x
  2. Step 2: Convert to fraction form
    587,771.20/881,656.80 = 144,539.20/x
  3. Step 3: Cross multiply
    587,771.20x = 881,656.80 × 144,539.20
  4. Step 4: Simplify right side
    587,771.20x = 127,433,968,546.56
  5. Step 5: Solve for x
    x = 127,433,968,546.56/587,771.20
  6. Step 6: Final answer
    x = 216,808.80

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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.