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Finding the Fourth Proportional to 98,894.52, 136,474.56 and 58,627.98

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Solution

The fourth proportional to 98,894.52, 136,474.56 and 58,627.98 is: 80,906.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,894.52 : 136,474.56 = 58,627.98 : x
  2. Step 2: Convert to fraction form
    98,894.52/136,474.56 = 58,627.98/x
  3. Step 3: Cross multiply
    98,894.52x = 136,474.56 × 58,627.98
  4. Step 4: Simplify right side
    98,894.52x = 8,001,227,774.19
  5. Step 5: Solve for x
    x = 8,001,227,774.19/98,894.52
  6. Step 6: Final answer
    x = 80,906.68

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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.