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Finding the Fourth Proportional to 108,207.57, 149,323.57 and 60,461.31

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Solution

The fourth proportional to 108,207.57, 149,323.57 and 60,461.31 is: 83,435.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,207.57 : 149,323.57 = 60,461.31 : x
  2. Step 2: Convert to fraction form
    108,207.57/149,323.57 = 60,461.31/x
  3. Step 3: Cross multiply
    108,207.57x = 149,323.57 × 60,461.31
  4. Step 4: Simplify right side
    108,207.57x = 9,028,298,656.08
  5. Step 5: Solve for x
    x = 9,028,298,656.08/108,207.57
  6. Step 6: Final answer
    x = 83,435.00

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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.