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Finding the Fourth Proportional to 168,042.60, 252,063.90 and 151,421.40

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Solution

The fourth proportional to 168,042.60, 252,063.90 and 151,421.40 is: 227,132.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,042.60 : 252,063.90 = 151,421.40 : x
  2. Step 2: Convert to fraction form
    168,042.60/252,063.90 = 151,421.40/x
  3. Step 3: Cross multiply
    168,042.60x = 252,063.90 × 151,421.40
  4. Step 4: Simplify right side
    168,042.60x = 38,167,868,627.46
  5. Step 5: Solve for x
    x = 38,167,868,627.46/168,042.60
  6. Step 6: Final answer
    x = 227,132.10

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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.