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Finding the Fourth Proportional to 220,577.13, 330,865.70 and 54,365.13

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Solution

The fourth proportional to 220,577.13, 330,865.70 and 54,365.13 is: 81,547.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,577.13 : 330,865.70 = 54,365.13 : x
  2. Step 2: Convert to fraction form
    220,577.13/330,865.70 = 54,365.13/x
  3. Step 3: Cross multiply
    220,577.13x = 330,865.70 × 54,365.13
  4. Step 4: Simplify right side
    220,577.13x = 17,987,556,793.04
  5. Step 5: Solve for x
    x = 17,987,556,793.04/220,577.13
  6. Step 6: Final answer
    x = 81,547.70

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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.