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Finding the Fourth Proportional to 112,521.60, 168,609.60 and 97,660.80

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Solution

The fourth proportional to 112,521.60, 168,609.60 and 97,660.80 is: 146,341.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,521.60 : 168,609.60 = 97,660.80 : x
  2. Step 2: Convert to fraction form
    112,521.60/168,609.60 = 97,660.80/x
  3. Step 3: Cross multiply
    112,521.60x = 168,609.60 × 97,660.80
  4. Step 4: Simplify right side
    112,521.60x = 16,466,548,423.68
  5. Step 5: Solve for x
    x = 16,466,548,423.68/112,521.60
  6. Step 6: Final answer
    x = 146,341.22

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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.