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Finding the Fourth Proportional to 108,655.75, 149,945.48 and 63,365.14

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Solution

The fourth proportional to 108,655.75, 149,945.48 and 63,365.14 is: 87,444.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,655.75 : 149,945.48 = 63,365.14 : x
  2. Step 2: Convert to fraction form
    108,655.75/149,945.48 = 63,365.14/x
  3. Step 3: Cross multiply
    108,655.75x = 149,945.48 × 63,365.14
  4. Step 4: Simplify right side
    108,655.75x = 9,501,316,332.57
  5. Step 5: Solve for x
    x = 9,501,316,332.57/108,655.75
  6. Step 6: Final answer
    x = 87,444.21

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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.