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Finding the Fourth Proportional to 142,712.33, 214,050.03 and 67,880.03

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Solution

The fourth proportional to 142,712.33, 214,050.03 and 67,880.03 is: 101,811.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,712.33 : 214,050.03 = 67,880.03 : x
  2. Step 2: Convert to fraction form
    142,712.33/214,050.03 = 67,880.03/x
  3. Step 3: Cross multiply
    142,712.33x = 214,050.03 × 67,880.03
  4. Step 4: Simplify right side
    142,712.33x = 14,529,721,387.65
  5. Step 5: Solve for x
    x = 14,529,721,387.65/142,712.33
  6. Step 6: Final answer
    x = 101,811.26

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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.