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Finding the Fourth Proportional to 168,741.40, 253,112.10 and 160,965.40

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Solution

The fourth proportional to 168,741.40, 253,112.10 and 160,965.40 is: 241,448.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,741.40 : 253,112.10 = 160,965.40 : x
  2. Step 2: Convert to fraction form
    168,741.40/253,112.10 = 160,965.40/x
  3. Step 3: Cross multiply
    168,741.40x = 253,112.10 × 160,965.40
  4. Step 4: Simplify right side
    168,741.40x = 40,742,290,421.34
  5. Step 5: Solve for x
    x = 40,742,290,421.34/168,741.40
  6. Step 6: Final answer
    x = 241,448.10

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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.