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Finding the Fourth Proportional to 254,878.72, 351,830.16 and 169,964.80

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Solution

The fourth proportional to 254,878.72, 351,830.16 and 169,964.80 is: 234,616.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,878.72 : 351,830.16 = 169,964.80 : x
  2. Step 2: Convert to fraction form
    254,878.72/351,830.16 = 169,964.80/x
  3. Step 3: Cross multiply
    254,878.72x = 351,830.16 × 169,964.80
  4. Step 4: Simplify right side
    254,878.72x = 59,798,742,778.37
  5. Step 5: Solve for x
    x = 59,798,742,778.37/254,878.72
  6. Step 6: Final answer
    x = 234,616.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.