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Finding the Fourth Proportional to 100,465.04, 150,702.18 and 33,905.72

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Solution

The fourth proportional to 100,465.04, 150,702.18 and 33,905.72 is: 50,860.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,465.04 : 150,702.18 = 33,905.72 : x
  2. Step 2: Convert to fraction form
    100,465.04/150,702.18 = 33,905.72/x
  3. Step 3: Cross multiply
    100,465.04x = 150,702.18 × 33,905.72
  4. Step 4: Simplify right side
    100,465.04x = 5,109,665,918.47
  5. Step 5: Solve for x
    x = 5,109,665,918.47/100,465.04
  6. Step 6: Final answer
    x = 50,860.14

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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.