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Finding the Fourth Proportional to 172,790.55, 238,470.28 and 96,316.63

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Solution

The fourth proportional to 172,790.55, 238,470.28 and 96,316.63 is: 132,927.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,790.55 : 238,470.28 = 96,316.63 : x
  2. Step 2: Convert to fraction form
    172,790.55/238,470.28 = 96,316.63/x
  3. Step 3: Cross multiply
    172,790.55x = 238,470.28 × 96,316.63
  4. Step 4: Simplify right side
    172,790.55x = 22,968,652,887.79
  5. Step 5: Solve for x
    x = 22,968,652,887.79/172,790.55
  6. Step 6: Final answer
    x = 132,927.71

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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.