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Finding the Fourth Proportional to 98,951.53, 136,554.77 and 53,630.97

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Solution

The fourth proportional to 98,951.53, 136,554.77 and 53,630.97 is: 74,011.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,951.53 : 136,554.77 = 53,630.97 : x
  2. Step 2: Convert to fraction form
    98,951.53/136,554.77 = 53,630.97/x
  3. Step 3: Cross multiply
    98,951.53x = 136,554.77 × 53,630.97
  4. Step 4: Simplify right side
    98,951.53x = 7,323,564,773.23
  5. Step 5: Solve for x
    x = 7,323,564,773.23/98,951.53
  6. Step 6: Final answer
    x = 74,011.64

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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.