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Finding the Fourth Proportional to 354,538.49, 531,726.73 and 101,817.01

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Solution

The fourth proportional to 354,538.49, 531,726.73 and 101,817.01 is: 152,702.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,538.49 : 531,726.73 = 101,817.01 : x
  2. Step 2: Convert to fraction form
    354,538.49/531,726.73 = 101,817.01/x
  3. Step 3: Cross multiply
    354,538.49x = 531,726.73 × 101,817.01
  4. Step 4: Simplify right side
    354,538.49x = 54,138,825,785.68
  5. Step 5: Solve for x
    x = 54,138,825,785.68/354,538.49
  6. Step 6: Final answer
    x = 152,702.25

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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.