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Finding the Fourth Proportional to 146,090.48, 201,540.84 and 85,630.48

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Solution

The fourth proportional to 146,090.48, 201,540.84 and 85,630.48 is: 118,132.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,090.48 : 201,540.84 = 85,630.48 : x
  2. Step 2: Convert to fraction form
    146,090.48/201,540.84 = 85,630.48/x
  3. Step 3: Cross multiply
    146,090.48x = 201,540.84 × 85,630.48
  4. Step 4: Simplify right side
    146,090.48x = 17,258,038,868.80
  5. Step 5: Solve for x
    x = 17,258,038,868.80/146,090.48
  6. Step 6: Final answer
    x = 118,132.54

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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.