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Finding the Fourth Proportional to 153,954.96, 212,435.04 and 93,494.08

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Solution

The fourth proportional to 153,954.96, 212,435.04 and 93,494.08 is: 129,007.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,954.96 : 212,435.04 = 93,494.08 : x
  2. Step 2: Convert to fraction form
    153,954.96/212,435.04 = 93,494.08/x
  3. Step 3: Cross multiply
    153,954.96x = 212,435.04 × 93,494.08
  4. Step 4: Simplify right side
    153,954.96x = 19,861,418,624.56
  5. Step 5: Solve for x
    x = 19,861,418,624.56/153,954.96
  6. Step 6: Final answer
    x = 129,007.98

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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.