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Finding the Fourth Proportional to 111,328, 153,633 and 60,341.56

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Solution

The fourth proportional to 111,328, 153,633 and 60,341.56 is: 83,271.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,328 : 153,633 = 60,341.56 : x
  2. Step 2: Convert to fraction form
    111,328/153,633 = 60,341.56/x
  3. Step 3: Cross multiply
    111,328x = 153,633 × 60,341.56
  4. Step 4: Simplify right side
    111,328x = 9,270,454,887.48
  5. Step 5: Solve for x
    x = 9,270,454,887.48/111,328
  6. Step 6: Final answer
    x = 83,271.55

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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.