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Finding the Fourth Proportional to 124,620.60, 171,979.32 and 68,032.38

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Solution

The fourth proportional to 124,620.60, 171,979.32 and 68,032.38 is: 93,886.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,620.60 : 171,979.32 = 68,032.38 : x
  2. Step 2: Convert to fraction form
    124,620.60/171,979.32 = 68,032.38/x
  3. Step 3: Cross multiply
    124,620.60x = 171,979.32 × 68,032.38
  4. Step 4: Simplify right side
    124,620.60x = 11,700,162,450.38
  5. Step 5: Solve for x
    x = 11,700,162,450.38/124,620.60
  6. Step 6: Final answer
    x = 93,886.26

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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.