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Finding the Fourth Proportional to 111,536.76, 153,920.79 and 60,549.49

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Solution

The fourth proportional to 111,536.76, 153,920.79 and 60,549.49 is: 83,558.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,536.76 : 153,920.79 = 60,549.49 : x
  2. Step 2: Convert to fraction form
    111,536.76/153,920.79 = 60,549.49/x
  3. Step 3: Cross multiply
    111,536.76x = 153,920.79 × 60,549.49
  4. Step 4: Simplify right side
    111,536.76x = 9,319,825,527.30
  5. Step 5: Solve for x
    x = 9,319,825,527.30/111,536.76
  6. Step 6: Final answer
    x = 83,558.33

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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.