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Finding the Fourth Proportional to 476,043.44, 714,069.78 and 121,057.46

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Solution

The fourth proportional to 476,043.44, 714,069.78 and 121,057.46 is: 181,587.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,043.44 : 714,069.78 = 121,057.46 : x
  2. Step 2: Convert to fraction form
    476,043.44/714,069.78 = 121,057.46/x
  3. Step 3: Cross multiply
    476,043.44x = 714,069.78 × 121,057.46
  4. Step 4: Simplify right side
    476,043.44x = 86,443,473,829.56
  5. Step 5: Solve for x
    x = 86,443,473,829.56/476,043.44
  6. Step 6: Final answer
    x = 181,587.36

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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.