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Finding the Fourth Proportional to 183,743.40, 275,615.10 and 65,426.70

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Solution

The fourth proportional to 183,743.40, 275,615.10 and 65,426.70 is: 98,140.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,743.40 : 275,615.10 = 65,426.70 : x
  2. Step 2: Convert to fraction form
    183,743.40/275,615.10 = 65,426.70/x
  3. Step 3: Cross multiply
    183,743.40x = 275,615.10 × 65,426.70
  4. Step 4: Simplify right side
    183,743.40x = 18,032,586,463.17
  5. Step 5: Solve for x
    x = 18,032,586,463.17/183,743.40
  6. Step 6: Final answer
    x = 98,140.05

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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.