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Finding the Fourth Proportional to 168,052.10, 252,078.15 and 151,430.90

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Solution

The fourth proportional to 168,052.10, 252,078.15 and 151,430.90 is: 227,146.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,052.10 : 252,078.15 = 151,430.90 : x
  2. Step 2: Convert to fraction form
    168,052.10/252,078.15 = 151,430.90/x
  3. Step 3: Cross multiply
    168,052.10x = 252,078.15 × 151,430.90
  4. Step 4: Simplify right side
    168,052.10x = 38,172,421,124.84
  5. Step 5: Solve for x
    x = 38,172,421,124.84/168,052.10
  6. Step 6: Final answer
    x = 227,146.35

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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.