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Finding the Fourth Proportional to 129,503.50, 194,283.04 and 73,370.50

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Solution

The fourth proportional to 129,503.50, 194,283.04 and 73,370.50 is: 110,071.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,503.50 : 194,283.04 = 73,370.50 : x
  2. Step 2: Convert to fraction form
    129,503.50/194,283.04 = 73,370.50/x
  3. Step 3: Cross multiply
    129,503.50x = 194,283.04 × 73,370.50
  4. Step 4: Simplify right side
    129,503.50x = 14,254,643,786.32
  5. Step 5: Solve for x
    x = 14,254,643,786.32/129,503.50
  6. Step 6: Final answer
    x = 110,071.49

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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.