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Finding the Fourth Proportional to 108,006, 149,048.28 and 63,294

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Solution

The fourth proportional to 108,006, 149,048.28 and 63,294 is: 87,345.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,006 : 149,048.28 = 63,294 : x
  2. Step 2: Convert to fraction form
    108,006/149,048.28 = 63,294/x
  3. Step 3: Cross multiply
    108,006x = 149,048.28 × 63,294
  4. Step 4: Simplify right side
    108,006x = 9,433,861,834.32
  5. Step 5: Solve for x
    x = 9,433,861,834.32/108,006
  6. Step 6: Final answer
    x = 87,345.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.