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Finding the Fourth Proportional to 111,864.68, 154,373.58 and 61,563.68

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Solution

The fourth proportional to 111,864.68, 154,373.58 and 61,563.68 is: 84,958.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,864.68 : 154,373.58 = 61,563.68 : x
  2. Step 2: Convert to fraction form
    111,864.68/154,373.58 = 61,563.68/x
  3. Step 3: Cross multiply
    111,864.68x = 154,373.58 × 61,563.68
  4. Step 4: Simplify right side
    111,864.68x = 9,503,805,679.57
  5. Step 5: Solve for x
    x = 9,503,805,679.57/111,864.68
  6. Step 6: Final answer
    x = 84,958.06

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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.