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Finding the Fourth Proportional to 371,722.32, 557,604.69 and 105,461.88

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Solution

The fourth proportional to 371,722.32, 557,604.69 and 105,461.88 is: 158,198.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,722.32 : 557,604.69 = 105,461.88 : x
  2. Step 2: Convert to fraction form
    371,722.32/557,604.69 = 105,461.88/x
  3. Step 3: Cross multiply
    371,722.32x = 557,604.69 × 105,461.88
  4. Step 4: Simplify right side
    371,722.32x = 58,806,038,904.22
  5. Step 5: Solve for x
    x = 58,806,038,904.22/371,722.32
  6. Step 6: Final answer
    x = 158,198.84

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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.