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Finding the Fourth Proportional to 111,598.84, 154,007.49 and 61,297.84

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Solution

The fourth proportional to 111,598.84, 154,007.49 and 61,297.84 is: 84,591.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,598.84 : 154,007.49 = 61,297.84 : x
  2. Step 2: Convert to fraction form
    111,598.84/154,007.49 = 61,297.84/x
  3. Step 3: Cross multiply
    111,598.84x = 154,007.49 × 61,297.84
  4. Step 4: Simplify right side
    111,598.84x = 9,440,326,480.82
  5. Step 5: Solve for x
    x = 9,440,326,480.82/111,598.84
  6. Step 6: Final answer
    x = 84,591.62

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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.