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Finding the Fourth Proportional to 103,468.10, 155,165.70 and 36,910.40

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Solution

The fourth proportional to 103,468.10, 155,165.70 and 36,910.40 is: 55,352.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,468.10 : 155,165.70 = 36,910.40 : x
  2. Step 2: Convert to fraction form
    103,468.10/155,165.70 = 36,910.40/x
  3. Step 3: Cross multiply
    103,468.10x = 155,165.70 × 36,910.40
  4. Step 4: Simplify right side
    103,468.10x = 5,727,228,053.28
  5. Step 5: Solve for x
    x = 5,727,228,053.28/103,468.10
  6. Step 6: Final answer
    x = 55,352.60

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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.