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Finding the Fourth Proportional to 176,514, 243,421.68 and 116,135.88

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Solution

The fourth proportional to 176,514, 243,421.68 and 116,135.88 is: 160,157.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,514 : 243,421.68 = 116,135.88 : x
  2. Step 2: Convert to fraction form
    176,514/243,421.68 = 116,135.88/x
  3. Step 3: Cross multiply
    176,514x = 243,421.68 × 116,135.88
  4. Step 4: Simplify right side
    176,514x = 28,269,991,017.88
  5. Step 5: Solve for x
    x = 28,269,991,017.88/176,514
  6. Step 6: Final answer
    x = 160,157.22

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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.