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Finding the Fourth Proportional to 111,889.01, 154,406.76 and 61,588.01

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Solution

The fourth proportional to 111,889.01, 154,406.76 and 61,588.01 is: 84,991.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,889.01 : 154,406.76 = 61,588.01 : x
  2. Step 2: Convert to fraction form
    111,889.01/154,406.76 = 61,588.01/x
  3. Step 3: Cross multiply
    111,889.01x = 154,406.76 × 61,588.01
  4. Step 4: Simplify right side
    111,889.01x = 9,509,605,078.95
  5. Step 5: Solve for x
    x = 9,509,605,078.95/111,889.01
  6. Step 6: Final answer
    x = 84,991.41

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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.