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Finding the Fourth Proportional to 98,835.59, 136,257.54 and 62,518.97

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Solution

The fourth proportional to 98,835.59, 136,257.54 and 62,518.97 is: 86,190.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,835.59 : 136,257.54 = 62,518.97 : x
  2. Step 2: Convert to fraction form
    98,835.59/136,257.54 = 62,518.97/x
  3. Step 3: Cross multiply
    98,835.59x = 136,257.54 × 62,518.97
  4. Step 4: Simplify right side
    98,835.59x = 8,518,681,055.53
  5. Step 5: Solve for x
    x = 8,518,681,055.53/98,835.59
  6. Step 6: Final answer
    x = 86,190.42

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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.