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Finding the Fourth Proportional to 185,596.65, 256,124.07 and 100,713.72

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Solution

The fourth proportional to 185,596.65, 256,124.07 and 100,713.72 is: 138,985.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,596.65 : 256,124.07 = 100,713.72 : x
  2. Step 2: Convert to fraction form
    185,596.65/256,124.07 = 100,713.72/x
  3. Step 3: Cross multiply
    185,596.65x = 256,124.07 × 100,713.72
  4. Step 4: Simplify right side
    185,596.65x = 25,795,207,871.24
  5. Step 5: Solve for x
    x = 25,795,207,871.24/185,596.65
  6. Step 6: Final answer
    x = 138,985.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.