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Finding the Fourth Proportional to 111,955.95, 167,908.95 and 67,521.51

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Solution

The fourth proportional to 111,955.95, 167,908.95 and 67,521.51 is: 101,267.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,955.95 : 167,908.95 = 67,521.51 : x
  2. Step 2: Convert to fraction form
    111,955.95/167,908.95 = 67,521.51/x
  3. Step 3: Cross multiply
    111,955.95x = 167,908.95 × 67,521.51
  4. Step 4: Simplify right side
    111,955.95x = 11,337,465,846.51
  5. Step 5: Solve for x
    x = 11,337,465,846.51/111,955.95
  6. Step 6: Final answer
    x = 101,267.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.