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Finding the Fourth Proportional to 115,468.80, 173,203.20 and 109,017.60

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Solution

The fourth proportional to 115,468.80, 173,203.20 and 109,017.60 is: 163,526.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,468.80 : 173,203.20 = 109,017.60 : x
  2. Step 2: Convert to fraction form
    115,468.80/173,203.20 = 109,017.60/x
  3. Step 3: Cross multiply
    115,468.80x = 173,203.20 × 109,017.60
  4. Step 4: Simplify right side
    115,468.80x = 18,882,197,176.32
  5. Step 5: Solve for x
    x = 18,882,197,176.32/115,468.80
  6. Step 6: Final answer
    x = 163,526.40

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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.