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Finding the Fourth Proportional to 140,570.65, 210,872.37 and 140,570.65

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Solution

The fourth proportional to 140,570.65, 210,872.37 and 140,570.65 is: 210,872.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,570.65 : 210,872.37 = 140,570.65 : x
  2. Step 2: Convert to fraction form
    140,570.65/210,872.37 = 140,570.65/x
  3. Step 3: Cross multiply
    140,570.65x = 210,872.37 × 140,570.65
  4. Step 4: Simplify right side
    140,570.65x = 29,642,466,117.94
  5. Step 5: Solve for x
    x = 29,642,466,117.94/140,570.65
  6. Step 6: Final answer
    x = 210,872.37

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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.