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Finding the Fourth Proportional to 145,291.44, 200,525.97 and 121,053.96

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Solution

The fourth proportional to 145,291.44, 200,525.97 and 121,053.96 is: 167,074.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,291.44 : 200,525.97 = 121,053.96 : x
  2. Step 2: Convert to fraction form
    145,291.44/200,525.97 = 121,053.96/x
  3. Step 3: Cross multiply
    145,291.44x = 200,525.97 × 121,053.96
  4. Step 4: Simplify right side
    145,291.44x = 24,274,462,751.34
  5. Step 5: Solve for x
    x = 24,274,462,751.34/145,291.44
  6. Step 6: Final answer
    x = 167,074.28

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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.