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Finding the Fourth Proportional to 201,431.60, 301,782.90 and 96,018.20

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Solution

The fourth proportional to 201,431.60, 301,782.90 and 96,018.20 is: 143,853.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,431.60 : 301,782.90 = 96,018.20 : x
  2. Step 2: Convert to fraction form
    201,431.60/301,782.90 = 96,018.20/x
  3. Step 3: Cross multiply
    201,431.60x = 301,782.90 × 96,018.20
  4. Step 4: Simplify right side
    201,431.60x = 28,976,650,848.78
  5. Step 5: Solve for x
    x = 28,976,650,848.78/201,431.60
  6. Step 6: Final answer
    x = 143,853.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.