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Finding the Fourth Proportional to 98,774.94, 136,309.59 and 54,062.94

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Solution

The fourth proportional to 98,774.94, 136,309.59 and 54,062.94 is: 74,606.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,774.94 : 136,309.59 = 54,062.94 : x
  2. Step 2: Convert to fraction form
    98,774.94/136,309.59 = 54,062.94/x
  3. Step 3: Cross multiply
    98,774.94x = 136,309.59 × 54,062.94
  4. Step 4: Simplify right side
    98,774.94x = 7,369,297,185.59
  5. Step 5: Solve for x
    x = 7,369,297,185.59/98,774.94
  6. Step 6: Final answer
    x = 74,606.95

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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.