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Finding the Fourth Proportional to 108,403.68, 149,603.64 and 60,656.01

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Solution

The fourth proportional to 108,403.68, 149,603.64 and 60,656.01 is: 83,708.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,403.68 : 149,603.64 = 60,656.01 : x
  2. Step 2: Convert to fraction form
    108,403.68/149,603.64 = 60,656.01/x
  3. Step 3: Cross multiply
    108,403.68x = 149,603.64 × 60,656.01
  4. Step 4: Simplify right side
    108,403.68x = 9,074,359,883.88
  5. Step 5: Solve for x
    x = 9,074,359,883.88/108,403.68
  6. Step 6: Final answer
    x = 83,708.97

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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.