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Finding the Fourth Proportional to 97,506.80, 146,260.20 and 80,885.60

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Solution

The fourth proportional to 97,506.80, 146,260.20 and 80,885.60 is: 121,328.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,506.80 : 146,260.20 = 80,885.60 : x
  2. Step 2: Convert to fraction form
    97,506.80/146,260.20 = 80,885.60/x
  3. Step 3: Cross multiply
    97,506.80x = 146,260.20 × 80,885.60
  4. Step 4: Simplify right side
    97,506.80x = 11,830,344,033.12
  5. Step 5: Solve for x
    x = 11,830,344,033.12/97,506.80
  6. Step 6: Final answer
    x = 121,328.40

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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.