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Finding the Fourth Proportional to 108,898.74, 150,215.10 and 68,542.44

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Solution

The fourth proportional to 108,898.74, 150,215.10 and 68,542.44 is: 94,547.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,898.74 : 150,215.10 = 68,542.44 : x
  2. Step 2: Convert to fraction form
    108,898.74/150,215.10 = 68,542.44/x
  3. Step 3: Cross multiply
    108,898.74x = 150,215.10 × 68,542.44
  4. Step 4: Simplify right side
    108,898.74x = 10,296,109,478.84
  5. Step 5: Solve for x
    x = 10,296,109,478.84/108,898.74
  6. Step 6: Final answer
    x = 94,547.55

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1.5x scale

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.