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Finding the Fourth Proportional to 186,691.89, 257,559.54 and 108,058.13

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Solution

The fourth proportional to 186,691.89, 257,559.54 and 108,058.13 is: 149,076.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,691.89 : 257,559.54 = 108,058.13 : x
  2. Step 2: Convert to fraction form
    186,691.89/257,559.54 = 108,058.13/x
  3. Step 3: Cross multiply
    186,691.89x = 257,559.54 × 108,058.13
  4. Step 4: Simplify right side
    186,691.89x = 27,831,400,968.26
  5. Step 5: Solve for x
    x = 27,831,400,968.26/186,691.89
  6. Step 6: Final answer
    x = 149,076.65

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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.