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Finding the Fourth Proportional to 97,461.20, 146,191.80 and 90,462.80

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Solution

The fourth proportional to 97,461.20, 146,191.80 and 90,462.80 is: 135,694.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,461.20 : 146,191.80 = 90,462.80 : x
  2. Step 2: Convert to fraction form
    97,461.20/146,191.80 = 90,462.80/x
  3. Step 3: Cross multiply
    97,461.20x = 146,191.80 × 90,462.80
  4. Step 4: Simplify right side
    97,461.20x = 13,224,919,565.04
  5. Step 5: Solve for x
    x = 13,224,919,565.04/97,461.20
  6. Step 6: Final answer
    x = 135,694.20

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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.