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Finding the Fourth Proportional to 141,968.60, 212,661.30 and 97,645.40

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Solution

The fourth proportional to 141,968.60, 212,661.30 and 97,645.40 is: 146,267.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,968.60 : 212,661.30 = 97,645.40 : x
  2. Step 2: Convert to fraction form
    141,968.60/212,661.30 = 97,645.40/x
  3. Step 3: Cross multiply
    141,968.60x = 212,661.30 × 97,645.40
  4. Step 4: Simplify right side
    141,968.60x = 20,765,397,703.02
  5. Step 5: Solve for x
    x = 20,765,397,703.02/141,968.60
  6. Step 6: Final answer
    x = 146,267.54

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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.