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Finding the Fourth Proportional to 121,194.30, 167,246.55 and 70,213.98

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Solution

The fourth proportional to 121,194.30, 167,246.55 and 70,213.98 is: 96,894.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,194.30 : 167,246.55 = 70,213.98 : x
  2. Step 2: Convert to fraction form
    121,194.30/167,246.55 = 70,213.98/x
  3. Step 3: Cross multiply
    121,194.30x = 167,246.55 × 70,213.98
  4. Step 4: Simplify right side
    121,194.30x = 11,743,045,916.77
  5. Step 5: Solve for x
    x = 11,743,045,916.77/121,194.30
  6. Step 6: Final answer
    x = 96,894.37

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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.