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Finding the Fourth Proportional to 118,869.70, 164,057.01 and 73,562.28

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Solution

The fourth proportional to 118,869.70, 164,057.01 and 73,562.28 is: 101,526.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,869.70 : 164,057.01 = 73,562.28 : x
  2. Step 2: Convert to fraction form
    118,869.70/164,057.01 = 73,562.28/x
  3. Step 3: Cross multiply
    118,869.70x = 164,057.01 × 73,562.28
  4. Step 4: Simplify right side
    118,869.70x = 12,068,406,517.49
  5. Step 5: Solve for x
    x = 12,068,406,517.49/118,869.70
  6. Step 6: Final answer
    x = 101,526.35

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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.