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Finding the Fourth Proportional to 133,101.68, 183,763.22 and 84,730.91

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Solution

The fourth proportional to 133,101.68, 183,763.22 and 84,730.91 is: 116,981.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,101.68 : 183,763.22 = 84,730.91 : x
  2. Step 2: Convert to fraction form
    133,101.68/183,763.22 = 84,730.91/x
  3. Step 3: Cross multiply
    133,101.68x = 183,763.22 × 84,730.91
  4. Step 4: Simplify right side
    133,101.68x = 15,570,423,512.66
  5. Step 5: Solve for x
    x = 15,570,423,512.66/133,101.68
  6. Step 6: Final answer
    x = 116,981.42

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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.