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Finding the Fourth Proportional to 67,652.88, 101,428.20 and 34,357.20

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Solution

The fourth proportional to 67,652.88, 101,428.20 and 34,357.20 is: 51,509.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,652.88 : 101,428.20 = 34,357.20 : x
  2. Step 2: Convert to fraction form
    67,652.88/101,428.20 = 34,357.20/x
  3. Step 3: Cross multiply
    67,652.88x = 101,428.20 × 34,357.20
  4. Step 4: Simplify right side
    67,652.88x = 3,484,788,953.04
  5. Step 5: Solve for x
    x = 3,484,788,953.04/67,652.88
  6. Step 6: Final answer
    x = 51,509.84

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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.