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Finding the Fourth Proportional to 108,769.59, 150,068.37 and 63,415.47

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Solution

The fourth proportional to 108,769.59, 150,068.37 and 63,415.47 is: 87,493.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,769.59 : 150,068.37 = 63,415.47 : x
  2. Step 2: Convert to fraction form
    108,769.59/150,068.37 = 63,415.47/x
  3. Step 3: Cross multiply
    108,769.59x = 150,068.37 × 63,415.47
  4. Step 4: Simplify right side
    108,769.59x = 9,516,656,215.68
  5. Step 5: Solve for x
    x = 9,516,656,215.68/108,769.59
  6. Step 6: Final answer
    x = 87,493.72

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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.