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Finding the Fourth Proportional to 116,937.84, 175,103.40 and 81,349.68

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Solution

The fourth proportional to 116,937.84, 175,103.40 and 81,349.68 is: 121,813.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,937.84 : 175,103.40 = 81,349.68 : x
  2. Step 2: Convert to fraction form
    116,937.84/175,103.40 = 81,349.68/x
  3. Step 3: Cross multiply
    116,937.84x = 175,103.40 × 81,349.68
  4. Step 4: Simplify right side
    116,937.84x = 14,244,605,556.91
  5. Step 5: Solve for x
    x = 14,244,605,556.91/116,937.84
  6. Step 6: Final answer
    x = 121,813.48

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1.5x scale

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.