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Finding the Fourth Proportional to 234,407.77, 323,484.28 and 126,977.81

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Solution

The fourth proportional to 234,407.77, 323,484.28 and 126,977.81 is: 175,230.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,407.77 : 323,484.28 = 126,977.81 : x
  2. Step 2: Convert to fraction form
    234,407.77/323,484.28 = 126,977.81/x
  3. Step 3: Cross multiply
    234,407.77x = 323,484.28 × 126,977.81
  4. Step 4: Simplify right side
    234,407.77x = 41,075,323,508.96
  5. Step 5: Solve for x
    x = 41,075,323,508.96/234,407.77
  6. Step 6: Final answer
    x = 175,230.22

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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.