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Finding the Fourth Proportional to 250,386.42, 375,511.59 and 72,847.38

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Solution

The fourth proportional to 250,386.42, 375,511.59 and 72,847.38 is: 109,251.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,386.42 : 375,511.59 = 72,847.38 : x
  2. Step 2: Convert to fraction form
    250,386.42/375,511.59 = 72,847.38/x
  3. Step 3: Cross multiply
    250,386.42x = 375,511.59 × 72,847.38
  4. Step 4: Simplify right side
    250,386.42x = 27,355,035,491.13
  5. Step 5: Solve for x
    x = 27,355,035,491.13/250,386.42
  6. Step 6: Final answer
    x = 109,251.27

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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.