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Finding the Fourth Proportional to 100,984.40, 151,476.60 and 34,402.40

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Solution

The fourth proportional to 100,984.40, 151,476.60 and 34,402.40 is: 51,603.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,984.40 : 151,476.60 = 34,402.40 : x
  2. Step 2: Convert to fraction form
    100,984.40/151,476.60 = 34,402.40/x
  3. Step 3: Cross multiply
    100,984.40x = 151,476.60 × 34,402.40
  4. Step 4: Simplify right side
    100,984.40x = 5,211,158,583.84
  5. Step 5: Solve for x
    x = 5,211,158,583.84/100,984.40
  6. Step 6: Final answer
    x = 51,603.60

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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.