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Finding the Fourth Proportional to 122,668.60, 184,002.90 and 121,502.20

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Solution

The fourth proportional to 122,668.60, 184,002.90 and 121,502.20 is: 182,253.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,668.60 : 184,002.90 = 121,502.20 : x
  2. Step 2: Convert to fraction form
    122,668.60/184,002.90 = 121,502.20/x
  3. Step 3: Cross multiply
    122,668.60x = 184,002.90 × 121,502.20
  4. Step 4: Simplify right side
    122,668.60x = 22,356,757,156.38
  5. Step 5: Solve for x
    x = 22,356,757,156.38/122,668.60
  6. Step 6: Final answer
    x = 182,253.30

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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.