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Finding the Fourth Proportional to 111,599, 154,006.62 and 61,298

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Solution

The fourth proportional to 111,599, 154,006.62 and 61,298 is: 84,591.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,599 : 154,006.62 = 61,298 : x
  2. Step 2: Convert to fraction form
    111,599/154,006.62 = 61,298/x
  3. Step 3: Cross multiply
    111,599x = 154,006.62 × 61,298
  4. Step 4: Simplify right side
    111,599x = 9,440,297,792.76
  5. Step 5: Solve for x
    x = 9,440,297,792.76/111,599
  6. Step 6: Final answer
    x = 84,591.24

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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.