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Finding the Fourth Proportional to 108,053.71, 149,128.22 and 60,316.97

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Solution

The fourth proportional to 108,053.71, 149,128.22 and 60,316.97 is: 83,245.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,053.71 : 149,128.22 = 60,316.97 : x
  2. Step 2: Convert to fraction form
    108,053.71/149,128.22 = 60,316.97/x
  3. Step 3: Cross multiply
    108,053.71x = 149,128.22 × 60,316.97
  4. Step 4: Simplify right side
    108,053.71x = 8,994,961,777.04
  5. Step 5: Solve for x
    x = 8,994,961,777.04/108,053.71
  6. Step 6: Final answer
    x = 83,245.29

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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.