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Finding the Fourth Proportional to 354,574.64, 531,857.88 and 101,861.36

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Solution

The fourth proportional to 354,574.64, 531,857.88 and 101,861.36 is: 152,790.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,574.64 : 531,857.88 = 101,861.36 : x
  2. Step 2: Convert to fraction form
    354,574.64/531,857.88 = 101,861.36/x
  3. Step 3: Cross multiply
    354,574.64x = 531,857.88 × 101,861.36
  4. Step 4: Simplify right side
    354,574.64x = 54,175,766,983.52
  5. Step 5: Solve for x
    x = 54,175,766,983.52/354,574.64
  6. Step 6: Final answer
    x = 152,790.87

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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.