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Finding the Fourth Proportional to 108,630.39, 149,916.06 and 60,886.80

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Solution

The fourth proportional to 108,630.39, 149,916.06 and 60,886.80 is: 84,027.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,630.39 : 149,916.06 = 60,886.80 : x
  2. Step 2: Convert to fraction form
    108,630.39/149,916.06 = 60,886.80/x
  3. Step 3: Cross multiply
    108,630.39x = 149,916.06 × 60,886.80
  4. Step 4: Simplify right side
    108,630.39x = 9,127,909,162.01
  5. Step 5: Solve for x
    x = 9,127,909,162.01/108,630.39
  6. Step 6: Final answer
    x = 84,027.22

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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.