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Finding the Fourth Proportional to 227,084.64, 313,390.80 and 126,482.64

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Solution

The fourth proportional to 227,084.64, 313,390.80 and 126,482.64 is: 174,553.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,084.64 : 313,390.80 = 126,482.64 : x
  2. Step 2: Convert to fraction form
    227,084.64/313,390.80 = 126,482.64/x
  3. Step 3: Cross multiply
    227,084.64x = 313,390.80 × 126,482.64
  4. Step 4: Simplify right side
    227,084.64x = 39,638,495,735.71
  5. Step 5: Solve for x
    x = 39,638,495,735.71/227,084.64
  6. Step 6: Final answer
    x = 174,553.84

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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.