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Finding the Fourth Proportional to 124,653.92, 172,022.40 and 68,065.34

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Solution

The fourth proportional to 124,653.92, 172,022.40 and 68,065.34 is: 93,930.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,653.92 : 172,022.40 = 68,065.34 : x
  2. Step 2: Convert to fraction form
    124,653.92/172,022.40 = 68,065.34/x
  3. Step 3: Cross multiply
    124,653.92x = 172,022.40 × 68,065.34
  4. Step 4: Simplify right side
    124,653.92x = 11,708,763,143.62
  5. Step 5: Solve for x
    x = 11,708,763,143.62/124,653.92
  6. Step 6: Final answer
    x = 93,930.16

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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.