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Finding the Fourth Proportional to 343,279.53, 514,952.55 and 106,558.65

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Solution

The fourth proportional to 343,279.53, 514,952.55 and 106,558.65 is: 159,848.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,279.53 : 514,952.55 = 106,558.65 : x
  2. Step 2: Convert to fraction form
    343,279.53/514,952.55 = 106,558.65/x
  3. Step 3: Cross multiply
    343,279.53x = 514,952.55 × 106,558.65
  4. Step 4: Simplify right side
    343,279.53x = 54,872,648,542.06
  5. Step 5: Solve for x
    x = 54,872,648,542.06/343,279.53
  6. Step 6: Final answer
    x = 159,848.30

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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.