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Finding the Fourth Proportional to 348,290.76, 522,669.16 and 126,674.76

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Solution

The fourth proportional to 348,290.76, 522,669.16 and 126,674.76 is: 190,096.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,290.76 : 522,669.16 = 126,674.76 : x
  2. Step 2: Convert to fraction form
    348,290.76/522,669.16 = 126,674.76/x
  3. Step 3: Cross multiply
    348,290.76x = 522,669.16 × 126,674.76
  4. Step 4: Simplify right side
    348,290.76x = 66,208,990,402.40
  5. Step 5: Solve for x
    x = 66,208,990,402.40/348,290.76
  6. Step 6: Final answer
    x = 190,096.89

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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.