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Finding the Fourth Proportional to 343,158.84, 514,738.62 and 143,370.36

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Solution

The fourth proportional to 343,158.84, 514,738.62 and 143,370.36 is: 215,055.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,158.84 : 514,738.62 = 143,370.36 : x
  2. Step 2: Convert to fraction form
    343,158.84/514,738.62 = 143,370.36/x
  3. Step 3: Cross multiply
    343,158.84x = 514,738.62 × 143,370.36
  4. Step 4: Simplify right side
    343,158.84x = 73,798,261,255.30
  5. Step 5: Solve for x
    x = 73,798,261,255.30/343,158.84
  6. Step 6: Final answer
    x = 215,055.69

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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.