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Finding the Fourth Proportional to 123,479.84, 185,220.68 and 34,742.32

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Solution

The fourth proportional to 123,479.84, 185,220.68 and 34,742.32 is: 52,113.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,479.84 : 185,220.68 = 34,742.32 : x
  2. Step 2: Convert to fraction form
    123,479.84/185,220.68 = 34,742.32/x
  3. Step 3: Cross multiply
    123,479.84x = 185,220.68 × 34,742.32
  4. Step 4: Simplify right side
    123,479.84x = 6,434,995,498.41
  5. Step 5: Solve for x
    x = 6,434,995,498.41/123,479.84
  6. Step 6: Final answer
    x = 52,113.73

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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.