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Finding the Fourth Proportional to 99,252.82, 136,917.54 and 61,461.46

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Solution

The fourth proportional to 99,252.82, 136,917.54 and 61,461.46 is: 84,785.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,252.82 : 136,917.54 = 61,461.46 : x
  2. Step 2: Convert to fraction form
    99,252.82/136,917.54 = 61,461.46/x
  3. Step 3: Cross multiply
    99,252.82x = 136,917.54 × 61,461.46
  4. Step 4: Simplify right side
    99,252.82x = 8,415,151,908.01
  5. Step 5: Solve for x
    x = 8,415,151,908.01/99,252.82
  6. Step 6: Final answer
    x = 84,785.02

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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.