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Finding the Fourth Proportional to 73,250.34, 109,696.30 and 66,150.61

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Solution

The fourth proportional to 73,250.34, 109,696.30 and 66,150.61 is: 99,064.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,250.34 : 109,696.30 = 66,150.61 : x
  2. Step 2: Convert to fraction form
    73,250.34/109,696.30 = 66,150.61/x
  3. Step 3: Cross multiply
    73,250.34x = 109,696.30 × 66,150.61
  4. Step 4: Simplify right side
    73,250.34x = 7,256,477,159.74
  5. Step 5: Solve for x
    x = 7,256,477,159.74/73,250.34
  6. Step 6: Final answer
    x = 99,064.07

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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.