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Finding the Fourth Proportional to 172,919.04, 238,628.24 and 93,431.04

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Solution

The fourth proportional to 172,919.04, 238,628.24 and 93,431.04 is: 128,934.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,919.04 : 238,628.24 = 93,431.04 : x
  2. Step 2: Convert to fraction form
    172,919.04/238,628.24 = 93,431.04/x
  3. Step 3: Cross multiply
    172,919.04x = 238,628.24 × 93,431.04
  4. Step 4: Simplify right side
    172,919.04x = 22,295,284,636.57
  5. Step 5: Solve for x
    x = 22,295,284,636.57/172,919.04
  6. Step 6: Final answer
    x = 128,934.82

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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.