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Finding the Fourth Proportional to 234,407.39, 323,483.76 and 126,977.43

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Solution

The fourth proportional to 234,407.39, 323,483.76 and 126,977.43 is: 175,229.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,407.39 : 323,483.76 = 126,977.43 : x
  2. Step 2: Convert to fraction form
    234,407.39/323,483.76 = 126,977.43/x
  3. Step 3: Cross multiply
    234,407.39x = 323,483.76 × 126,977.43
  4. Step 4: Simplify right side
    234,407.39x = 41,075,136,491.54
  5. Step 5: Solve for x
    x = 41,075,136,491.54/234,407.39
  6. Step 6: Final answer
    x = 175,229.70

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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.