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Finding the Fourth Proportional to 226,425.60, 339,670.80 and 68,666.40

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Solution

The fourth proportional to 226,425.60, 339,670.80 and 68,666.40 is: 103,009.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,425.60 : 339,670.80 = 68,666.40 : x
  2. Step 2: Convert to fraction form
    226,425.60/339,670.80 = 68,666.40/x
  3. Step 3: Cross multiply
    226,425.60x = 339,670.80 × 68,666.40
  4. Step 4: Simplify right side
    226,425.60x = 23,323,971,021.12
  5. Step 5: Solve for x
    x = 23,323,971,021.12/226,425.60
  6. Step 6: Final answer
    x = 103,009.43

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1.5x scale

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.