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Finding the Fourth Proportional to 250,095.76, 345,133.16 and 136,929.04

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Solution

The fourth proportional to 250,095.76, 345,133.16 and 136,929.04 is: 188,962.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,095.76 : 345,133.16 = 136,929.04 : x
  2. Step 2: Convert to fraction form
    250,095.76/345,133.16 = 136,929.04/x
  3. Step 3: Cross multiply
    250,095.76x = 345,133.16 × 136,929.04
  4. Step 4: Simplify right side
    250,095.76x = 47,258,752,270.97
  5. Step 5: Solve for x
    x = 47,258,752,270.97/250,095.76
  6. Step 6: Final answer
    x = 188,962.63

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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.