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Finding the Fourth Proportional to 354,872.24, 532,315.72 and 127,182.64

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Solution

The fourth proportional to 354,872.24, 532,315.72 and 127,182.64 is: 190,776.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,872.24 : 532,315.72 = 127,182.64 : x
  2. Step 2: Convert to fraction form
    354,872.24/532,315.72 = 127,182.64/x
  3. Step 3: Cross multiply
    354,872.24x = 532,315.72 × 127,182.64
  4. Step 4: Simplify right side
    354,872.24x = 67,701,318,583.10
  5. Step 5: Solve for x
    x = 67,701,318,583.10/354,872.24
  6. Step 6: Final answer
    x = 190,776.60

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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.