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Finding the Fourth Proportional to 133,032.69, 199,583.60 and 66,470.13

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Solution

The fourth proportional to 133,032.69, 199,583.60 and 66,470.13 is: 99,722.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,032.69 : 199,583.60 = 66,470.13 : x
  2. Step 2: Convert to fraction form
    133,032.69/199,583.60 = 66,470.13/x
  3. Step 3: Cross multiply
    133,032.69x = 199,583.60 × 66,470.13
  4. Step 4: Simplify right side
    133,032.69x = 13,266,347,505.52
  5. Step 5: Solve for x
    x = 13,266,347,505.52/133,032.69
  6. Step 6: Final answer
    x = 99,722.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.