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Finding the Fourth Proportional to 321,232.82, 443,298.15 and 176,039.91

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Solution

The fourth proportional to 321,232.82, 443,298.15 and 176,039.91 is: 242,933.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,232.82 : 443,298.15 = 176,039.91 : x
  2. Step 2: Convert to fraction form
    321,232.82/443,298.15 = 176,039.91/x
  3. Step 3: Cross multiply
    321,232.82x = 443,298.15 × 176,039.91
  4. Step 4: Simplify right side
    321,232.82x = 78,038,166,429.17
  5. Step 5: Solve for x
    x = 78,038,166,429.17/321,232.82
  6. Step 6: Final answer
    x = 242,933.36

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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.