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Finding the Fourth Proportional to 172,570.76, 238,163.73 and 100,946.24

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Solution

The fourth proportional to 172,570.76, 238,163.73 and 100,946.24 is: 139,315.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,570.76 : 238,163.73 = 100,946.24 : x
  2. Step 2: Convert to fraction form
    172,570.76/238,163.73 = 100,946.24/x
  3. Step 3: Cross multiply
    172,570.76x = 238,163.73 × 100,946.24
  4. Step 4: Simplify right side
    172,570.76x = 24,041,733,047.88
  5. Step 5: Solve for x
    x = 24,041,733,047.88/172,570.76
  6. Step 6: Final answer
    x = 139,315.22

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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.