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Finding the Fourth Proportional to 67,125.87, 100,898.01 and 42,325.29

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Solution

The fourth proportional to 67,125.87, 100,898.01 and 42,325.29 is: 63,619.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,125.87 : 100,898.01 = 42,325.29 : x
  2. Step 2: Convert to fraction form
    67,125.87/100,898.01 = 42,325.29/x
  3. Step 3: Cross multiply
    67,125.87x = 100,898.01 × 42,325.29
  4. Step 4: Simplify right side
    67,125.87x = 4,270,537,533.67
  5. Step 5: Solve for x
    x = 4,270,537,533.67/67,125.87
  6. Step 6: Final answer
    x = 63,619.85

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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.