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Finding the Fourth Proportional to 172,574.76, 238,169.25 and 100,950.24

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Solution

The fourth proportional to 172,574.76, 238,169.25 and 100,950.24 is: 139,320.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,574.76 : 238,169.25 = 100,950.24 : x
  2. Step 2: Convert to fraction form
    172,574.76/238,169.25 = 100,950.24/x
  3. Step 3: Cross multiply
    172,574.76x = 238,169.25 × 100,950.24
  4. Step 4: Simplify right side
    172,574.76x = 24,043,242,948.12
  5. Step 5: Solve for x
    x = 24,043,242,948.12/172,574.76
  6. Step 6: Final answer
    x = 139,320.74

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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.