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Finding the Fourth Proportional to 153,880.78, 212,359.07 and 96,522.54

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Solution

The fourth proportional to 153,880.78, 212,359.07 and 96,522.54 is: 133,203.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,880.78 : 212,359.07 = 96,522.54 : x
  2. Step 2: Convert to fraction form
    153,880.78/212,359.07 = 96,522.54/x
  3. Step 3: Cross multiply
    153,880.78x = 212,359.07 × 96,522.54
  4. Step 4: Simplify right side
    153,880.78x = 20,497,435,730.46
  5. Step 5: Solve for x
    x = 20,497,435,730.46/153,880.78
  6. Step 6: Final answer
    x = 133,203.35

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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.