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Finding the Fourth Proportional to 130,033.68, 194,890.98 and 73,920.72

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Solution

The fourth proportional to 130,033.68, 194,890.98 and 73,920.72 is: 110,790.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,033.68 : 194,890.98 = 73,920.72 : x
  2. Step 2: Convert to fraction form
    130,033.68/194,890.98 = 73,920.72/x
  3. Step 3: Cross multiply
    130,033.68x = 194,890.98 × 73,920.72
  4. Step 4: Simplify right side
    130,033.68x = 14,406,481,563.11
  5. Step 5: Solve for x
    x = 14,406,481,563.11/130,033.68
  6. Step 6: Final answer
    x = 110,790.39

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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.