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Finding the Fourth Proportional to 230,947.88, 346,431.56 and 73,172.84

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Solution

The fourth proportional to 230,947.88, 346,431.56 and 73,172.84 is: 109,762.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,947.88 : 346,431.56 = 73,172.84 : x
  2. Step 2: Convert to fraction form
    230,947.88/346,431.56 = 73,172.84/x
  3. Step 3: Cross multiply
    230,947.88x = 346,431.56 × 73,172.84
  4. Step 4: Simplify right side
    230,947.88x = 25,349,381,110.83
  5. Step 5: Solve for x
    x = 25,349,381,110.83/230,947.88
  6. Step 6: Final answer
    x = 109,762.35

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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.