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Finding the Fourth Proportional to 98,374.76, 135,755.56 and 55,932.38

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Solution

The fourth proportional to 98,374.76, 135,755.56 and 55,932.38 is: 77,185.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,374.76 : 135,755.56 = 55,932.38 : x
  2. Step 2: Convert to fraction form
    98,374.76/135,755.56 = 55,932.38/x
  3. Step 3: Cross multiply
    98,374.76x = 135,755.56 × 55,932.38
  4. Step 4: Simplify right side
    98,374.76x = 7,593,131,569.03
  5. Step 5: Solve for x
    x = 7,593,131,569.03/98,374.76
  6. Step 6: Final answer
    x = 77,185.77

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1.5x scale

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.