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Finding the Fourth Proportional to 112,393.01, 167,769.61 and 98,205.11

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Solution

The fourth proportional to 112,393.01, 167,769.61 and 98,205.11 is: 146,591.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,393.01 : 167,769.61 = 98,205.11 : x
  2. Step 2: Convert to fraction form
    112,393.01/167,769.61 = 98,205.11/x
  3. Step 3: Cross multiply
    112,393.01x = 167,769.61 × 98,205.11
  4. Step 4: Simplify right side
    112,393.01x = 16,475,831,674.83
  5. Step 5: Solve for x
    x = 16,475,831,674.83/112,393.01
  6. Step 6: Final answer
    x = 146,591.26

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.