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Finding the Fourth Proportional to 195,894.65, 270,256.91 and 127,889.89

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Solution

The fourth proportional to 195,894.65, 270,256.91 and 127,889.89 is: 176,437.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,894.65 : 270,256.91 = 127,889.89 : x
  2. Step 2: Convert to fraction form
    195,894.65/270,256.91 = 127,889.89/x
  3. Step 3: Cross multiply
    195,894.65x = 270,256.91 × 127,889.89
  4. Step 4: Simplify right side
    195,894.65x = 34,563,125,176.55
  5. Step 5: Solve for x
    x = 34,563,125,176.55/195,894.65
  6. Step 6: Final answer
    x = 176,437.31

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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.