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Finding the Fourth Proportional to 111,760.62, 154,226.58 and 61,459.62

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Solution

The fourth proportional to 111,760.62, 154,226.58 and 61,459.62 is: 84,812.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,760.62 : 154,226.58 = 61,459.62 : x
  2. Step 2: Convert to fraction form
    111,760.62/154,226.58 = 61,459.62/x
  3. Step 3: Cross multiply
    111,760.62x = 154,226.58 × 61,459.62
  4. Step 4: Simplify right side
    111,760.62x = 9,478,707,000.70
  5. Step 5: Solve for x
    x = 9,478,707,000.70/111,760.62
  6. Step 6: Final answer
    x = 84,812.58

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1.5x scale

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.