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Finding the Fourth Proportional to 183,938.20, 275,907.30 and 65,613.40

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Solution

The fourth proportional to 183,938.20, 275,907.30 and 65,613.40 is: 98,420.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,938.20 : 275,907.30 = 65,613.40 : x
  2. Step 2: Convert to fraction form
    183,938.20/275,907.30 = 65,613.40/x
  3. Step 3: Cross multiply
    183,938.20x = 275,907.30 × 65,613.40
  4. Step 4: Simplify right side
    183,938.20x = 18,103,216,037.82
  5. Step 5: Solve for x
    x = 18,103,216,037.82/183,938.20
  6. Step 6: Final answer
    x = 98,420.10

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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.