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Finding the Fourth Proportional to 111,508.53, 153,881.91 and 60,521.26

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Solution

The fourth proportional to 111,508.53, 153,881.91 and 60,521.26 is: 83,519.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,508.53 : 153,881.91 = 60,521.26 : x
  2. Step 2: Convert to fraction form
    111,508.53/153,881.91 = 60,521.26/x
  3. Step 3: Cross multiply
    111,508.53x = 153,881.91 × 60,521.26
  4. Step 4: Simplify right side
    111,508.53x = 9,313,126,315.00
  5. Step 5: Solve for x
    x = 9,313,126,315.00/111,508.53
  6. Step 6: Final answer
    x = 83,519.41

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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.