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Finding the Fourth Proportional to 98,984.90, 136,597.46 and 55,963.71

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Solution

The fourth proportional to 98,984.90, 136,597.46 and 55,963.71 is: 77,228.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,984.90 : 136,597.46 = 55,963.71 : x
  2. Step 2: Convert to fraction form
    98,984.90/136,597.46 = 55,963.71/x
  3. Step 3: Cross multiply
    98,984.90x = 136,597.46 × 55,963.71
  4. Step 4: Simplify right side
    98,984.90x = 7,644,500,358.36
  5. Step 5: Solve for x
    x = 7,644,500,358.36/98,984.90
  6. Step 6: Final answer
    x = 77,228.95

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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.