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Finding the Fourth Proportional to 111,833.64, 154,332.27 and 60,847.38

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Solution

The fourth proportional to 111,833.64, 154,332.27 and 60,847.38 is: 83,970.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,833.64 : 154,332.27 = 60,847.38 : x
  2. Step 2: Convert to fraction form
    111,833.64/154,332.27 = 60,847.38/x
  3. Step 3: Cross multiply
    111,833.64x = 154,332.27 × 60,847.38
  4. Step 4: Simplify right side
    111,833.64x = 9,390,714,278.95
  5. Step 5: Solve for x
    x = 9,390,714,278.95/111,833.64
  6. Step 6: Final answer
    x = 83,970.39

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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.