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Finding the Fourth Proportional to 111,885.64, 154,397.41 and 60,898.43

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Solution

The fourth proportional to 111,885.64, 154,397.41 and 60,898.43 is: 84,037.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,885.64 : 154,397.41 = 60,898.43 : x
  2. Step 2: Convert to fraction form
    111,885.64/154,397.41 = 60,898.43/x
  3. Step 3: Cross multiply
    111,885.64x = 154,397.41 × 60,898.43
  4. Step 4: Simplify right side
    111,885.64x = 9,402,560,098.81
  5. Step 5: Solve for x
    x = 9,402,560,098.81/111,885.64
  6. Step 6: Final answer
    x = 84,037.24

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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.