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Finding the Fourth Proportional to 124,573.77, 171,917.39 and 70,144.65

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Solution

The fourth proportional to 124,573.77, 171,917.39 and 70,144.65 is: 96,802.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,573.77 : 171,917.39 = 70,144.65 : x
  2. Step 2: Convert to fraction form
    124,573.77/171,917.39 = 70,144.65/x
  3. Step 3: Cross multiply
    124,573.77x = 171,917.39 × 70,144.65
  4. Step 4: Simplify right side
    124,573.77x = 12,059,085,325.83
  5. Step 5: Solve for x
    x = 12,059,085,325.83/124,573.77
  6. Step 6: Final answer
    x = 96,802.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.