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Finding the Fourth Proportional to 115,722.52, 173,303.46 and 80,083.97

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Solution

The fourth proportional to 115,722.52, 173,303.46 and 80,083.97 is: 119,931.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,722.52 : 173,303.46 = 80,083.97 : x
  2. Step 2: Convert to fraction form
    115,722.52/173,303.46 = 80,083.97/x
  3. Step 3: Cross multiply
    115,722.52x = 173,303.46 × 80,083.97
  4. Step 4: Simplify right side
    115,722.52x = 13,878,828,225.02
  5. Step 5: Solve for x
    x = 13,878,828,225.02/115,722.52
  6. Step 6: Final answer
    x = 119,931.96

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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.