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Finding the Fourth Proportional to 164,359.68, 226,755.48 and 121,442.64

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Solution

The fourth proportional to 164,359.68, 226,755.48 and 121,442.64 is: 167,545.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,359.68 : 226,755.48 = 121,442.64 : x
  2. Step 2: Convert to fraction form
    164,359.68/226,755.48 = 121,442.64/x
  3. Step 3: Cross multiply
    164,359.68x = 226,755.48 × 121,442.64
  4. Step 4: Simplify right side
    164,359.68x = 27,537,784,125.67
  5. Step 5: Solve for x
    x = 27,537,784,125.67/164,359.68
  6. Step 6: Final answer
    x = 167,545.86

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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.