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Finding the Fourth Proportional to 292,161.66, 438,491.16 and 114,792.72

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Solution

The fourth proportional to 292,161.66, 438,491.16 and 114,792.72 is: 172,286.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,161.66 : 438,491.16 = 114,792.72 : x
  2. Step 2: Convert to fraction form
    292,161.66/438,491.16 = 114,792.72/x
  3. Step 3: Cross multiply
    292,161.66x = 438,491.16 × 114,792.72
  4. Step 4: Simplify right side
    292,161.66x = 50,335,592,952.36
  5. Step 5: Solve for x
    x = 50,335,592,952.36/292,161.66
  6. Step 6: Final answer
    x = 172,286.78

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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.