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Finding the Fourth Proportional to 343,247.65, 514,752.01 and 140,786.25

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Solution

The fourth proportional to 343,247.65, 514,752.01 and 140,786.25 is: 211,130.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,247.65 : 514,752.01 = 140,786.25 : x
  2. Step 2: Convert to fraction form
    343,247.65/514,752.01 = 140,786.25/x
  3. Step 3: Cross multiply
    343,247.65x = 514,752.01 × 140,786.25
  4. Step 4: Simplify right side
    343,247.65x = 72,470,006,572.98
  5. Step 5: Solve for x
    x = 72,470,006,572.98/343,247.65
  6. Step 6: Final answer
    x = 211,130.38

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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.