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Finding the Fourth Proportional to 228,237.60, 314,953.68 and 126,260.64

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Solution

The fourth proportional to 228,237.60, 314,953.68 and 126,260.64 is: 174,231.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,237.60 : 314,953.68 = 126,260.64 : x
  2. Step 2: Convert to fraction form
    228,237.60/314,953.68 = 126,260.64/x
  3. Step 3: Cross multiply
    228,237.60x = 314,953.68 × 126,260.64
  4. Step 4: Simplify right side
    228,237.60x = 39,766,253,207.16
  5. Step 5: Solve for x
    x = 39,766,253,207.16/228,237.60
  6. Step 6: Final answer
    x = 174,231.82

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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.