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Finding the Fourth Proportional to 121,246.08, 167,328 and 73,501.44

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Solution

The fourth proportional to 121,246.08, 167,328 and 73,501.44 is: 101,437.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,246.08 : 167,328 = 73,501.44 : x
  2. Step 2: Convert to fraction form
    121,246.08/167,328 = 73,501.44/x
  3. Step 3: Cross multiply
    121,246.08x = 167,328 × 73,501.44
  4. Step 4: Simplify right side
    121,246.08x = 12,298,848,952.32
  5. Step 5: Solve for x
    x = 12,298,848,952.32/121,246.08
  6. Step 6: Final answer
    x = 101,437.09

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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.