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Finding the Fourth Proportional to 115,575.40, 173,363.10 and 108,663.40

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Solution

The fourth proportional to 115,575.40, 173,363.10 and 108,663.40 is: 162,995.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,575.40 : 173,363.10 = 108,663.40 : x
  2. Step 2: Convert to fraction form
    115,575.40/173,363.10 = 108,663.40/x
  3. Step 3: Cross multiply
    115,575.40x = 173,363.10 × 108,663.40
  4. Step 4: Simplify right side
    115,575.40x = 18,838,223,880.54
  5. Step 5: Solve for x
    x = 18,838,223,880.54/115,575.40
  6. Step 6: Final answer
    x = 162,995.10

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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.