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Finding the Fourth Proportional to 111,433.95, 153,777.95 and 60,446.55

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Solution

The fourth proportional to 111,433.95, 153,777.95 and 60,446.55 is: 83,415.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,433.95 : 153,777.95 = 60,446.55 : x
  2. Step 2: Convert to fraction form
    111,433.95/153,777.95 = 60,446.55/x
  3. Step 3: Cross multiply
    111,433.95x = 153,777.95 × 60,446.55
  4. Step 4: Simplify right side
    111,433.95x = 9,295,347,044.68
  5. Step 5: Solve for x
    x = 9,295,347,044.68/111,433.95
  6. Step 6: Final answer
    x = 83,415.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.