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Finding the Fourth Proportional to 108,445.68, 149,655.02 and 60,699.04

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Solution

The fourth proportional to 108,445.68, 149,655.02 and 60,699.04 is: 83,764.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,445.68 : 149,655.02 = 60,699.04 : x
  2. Step 2: Convert to fraction form
    108,445.68/149,655.02 = 60,699.04/x
  3. Step 3: Cross multiply
    108,445.68x = 149,655.02 × 60,699.04
  4. Step 4: Simplify right side
    108,445.68x = 9,083,915,367.55
  5. Step 5: Solve for x
    x = 9,083,915,367.55/108,445.68
  6. Step 6: Final answer
    x = 83,764.66

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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.