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Finding the Fourth Proportional to 168,428.16, 252,774.23 and 117,495.90

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Solution

The fourth proportional to 168,428.16, 252,774.23 and 117,495.90 is: 176,335.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,428.16 : 252,774.23 = 117,495.90 : x
  2. Step 2: Convert to fraction form
    168,428.16/252,774.23 = 117,495.90/x
  3. Step 3: Cross multiply
    168,428.16x = 252,774.23 × 117,495.90
  4. Step 4: Simplify right side
    168,428.16x = 29,699,935,063.18
  5. Step 5: Solve for x
    x = 29,699,935,063.18/168,428.16
  6. Step 6: Final answer
    x = 176,335.92

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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.