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Finding the Fourth Proportional to 226,353.10, 312,365.72 and 124,379.64

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Solution

The fourth proportional to 226,353.10, 312,365.72 and 124,379.64 is: 171,643.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,353.10 : 312,365.72 = 124,379.64 : x
  2. Step 2: Convert to fraction form
    226,353.10/312,365.72 = 124,379.64/x
  3. Step 3: Cross multiply
    226,353.10x = 312,365.72 × 124,379.64
  4. Step 4: Simplify right side
    226,353.10x = 38,851,935,801.94
  5. Step 5: Solve for x
    x = 38,851,935,801.94/226,353.10
  6. Step 6: Final answer
    x = 171,643.05

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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.