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Finding the Fourth Proportional to 167,967.10, 251,950.65 and 83,986.30

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Solution

The fourth proportional to 167,967.10, 251,950.65 and 83,986.30 is: 125,979.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,967.10 : 251,950.65 = 83,986.30 : x
  2. Step 2: Convert to fraction form
    167,967.10/251,950.65 = 83,986.30/x
  3. Step 3: Cross multiply
    167,967.10x = 251,950.65 × 83,986.30
  4. Step 4: Simplify right side
    167,967.10x = 21,160,402,876.10
  5. Step 5: Solve for x
    x = 21,160,402,876.10/167,967.10
  6. Step 6: Final answer
    x = 125,979.45

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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.