Home / 117,620.49-176,431.64-28,874.76

Finding the Fourth Proportional to 117,620.49, 176,431.64 and 28,874.76

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Solution

The fourth proportional to 117,620.49, 176,431.64 and 28,874.76 is: 43,312.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,620.49 : 176,431.64 = 28,874.76 : x
  2. Step 2: Convert to fraction form
    117,620.49/176,431.64 = 28,874.76/x
  3. Step 3: Cross multiply
    117,620.49x = 176,431.64 × 28,874.76
  4. Step 4: Simplify right side
    117,620.49x = 5,094,421,261.41
  5. Step 5: Solve for x
    x = 5,094,421,261.41/117,620.49
  6. Step 6: Final answer
    x = 43,312.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.