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Finding the Fourth Proportional to 115,572.80, 173,359.20 and 102,353.60

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Solution

The fourth proportional to 115,572.80, 173,359.20 and 102,353.60 is: 153,530.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,572.80 : 173,359.20 = 102,353.60 : x
  2. Step 2: Convert to fraction form
    115,572.80/173,359.20 = 102,353.60/x
  3. Step 3: Cross multiply
    115,572.80x = 173,359.20 × 102,353.60
  4. Step 4: Simplify right side
    115,572.80x = 17,743,938,213.12
  5. Step 5: Solve for x
    x = 17,743,938,213.12/115,572.80
  6. Step 6: Final answer
    x = 153,530.40

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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.