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Finding the Fourth Proportional to 122,324.58, 168,805.89 and 71,366.94

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Solution

The fourth proportional to 122,324.58, 168,805.89 and 71,366.94 is: 98,485.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,324.58 : 168,805.89 = 71,366.94 : x
  2. Step 2: Convert to fraction form
    122,324.58/168,805.89 = 71,366.94/x
  3. Step 3: Cross multiply
    122,324.58x = 168,805.89 × 71,366.94
  4. Step 4: Simplify right side
    122,324.58x = 12,047,159,823.28
  5. Step 5: Solve for x
    x = 12,047,159,823.28/122,324.58
  6. Step 6: Final answer
    x = 98,485.19

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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.