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Finding the Fourth Proportional to 195,403.20, 293,104.80 and 112,459.20

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Solution

The fourth proportional to 195,403.20, 293,104.80 and 112,459.20 is: 168,688.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,403.20 : 293,104.80 = 112,459.20 : x
  2. Step 2: Convert to fraction form
    195,403.20/293,104.80 = 112,459.20/x
  3. Step 3: Cross multiply
    195,403.20x = 293,104.80 × 112,459.20
  4. Step 4: Simplify right side
    195,403.20x = 32,962,331,324.16
  5. Step 5: Solve for x
    x = 32,962,331,324.16/195,403.20
  6. Step 6: Final answer
    x = 168,688.80

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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.