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Finding the Fourth Proportional to 92,955.76, 128,273.68 and 50,514

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Solution

The fourth proportional to 92,955.76, 128,273.68 and 50,514 is: 69,706.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,955.76 : 128,273.68 = 50,514 : x
  2. Step 2: Convert to fraction form
    92,955.76/128,273.68 = 50,514/x
  3. Step 3: Cross multiply
    92,955.76x = 128,273.68 × 50,514
  4. Step 4: Simplify right side
    92,955.76x = 6,479,616,671.52
  5. Step 5: Solve for x
    x = 6,479,616,671.52/92,955.76
  6. Step 6: Final answer
    x = 69,706.46

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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.