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Finding the Fourth Proportional to 272,490.88, 408,764.19 and 104,152.90

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Solution

The fourth proportional to 272,490.88, 408,764.19 and 104,152.90 is: 156,240.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,490.88 : 408,764.19 = 104,152.90 : x
  2. Step 2: Convert to fraction form
    272,490.88/408,764.19 = 104,152.90/x
  3. Step 3: Cross multiply
    272,490.88x = 408,764.19 × 104,152.90
  4. Step 4: Simplify right side
    272,490.88x = 42,573,975,804.65
  5. Step 5: Solve for x
    x = 42,573,975,804.65/272,490.88
  6. Step 6: Final answer
    x = 156,240.00

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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.