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Finding the Fourth Proportional to 133,145.92, 183,657 and 101,244.88

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Solution

The fourth proportional to 133,145.92, 183,657 and 101,244.88 is: 139,653.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,145.92 : 183,657 = 101,244.88 : x
  2. Step 2: Convert to fraction form
    133,145.92/183,657 = 101,244.88/x
  3. Step 3: Cross multiply
    133,145.92x = 183,657 × 101,244.88
  4. Step 4: Simplify right side
    133,145.92x = 18,594,330,926.16
  5. Step 5: Solve for x
    x = 18,594,330,926.16/133,145.92
  6. Step 6: Final answer
    x = 139,653.78

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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.