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Finding the Fourth Proportional to 98,245.51, 135,267.93 and 89,266.14

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Solution

The fourth proportional to 98,245.51, 135,267.93 and 89,266.14 is: 122,904.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,245.51 : 135,267.93 = 89,266.14 : x
  2. Step 2: Convert to fraction form
    98,245.51/135,267.93 = 89,266.14/x
  3. Step 3: Cross multiply
    98,245.51x = 135,267.93 × 89,266.14
  4. Step 4: Simplify right side
    98,245.51x = 12,074,845,976.89
  5. Step 5: Solve for x
    x = 12,074,845,976.89/98,245.51
  6. Step 6: Final answer
    x = 122,904.82

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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.