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Finding the Fourth Proportional to 362,651.76, 544,079.70 and 126,018.36

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Solution

The fourth proportional to 362,651.76, 544,079.70 and 126,018.36 is: 189,063.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,651.76 : 544,079.70 = 126,018.36 : x
  2. Step 2: Convert to fraction form
    362,651.76/544,079.70 = 126,018.36/x
  3. Step 3: Cross multiply
    362,651.76x = 544,079.70 × 126,018.36
  4. Step 4: Simplify right side
    362,651.76x = 68,564,031,503.29
  5. Step 5: Solve for x
    x = 68,564,031,503.29/362,651.76
  6. Step 6: Final answer
    x = 189,063.00

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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.