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Finding the Fourth Proportional to 109,878.10, 164,817.15 and 36,006.10

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Solution

The fourth proportional to 109,878.10, 164,817.15 and 36,006.10 is: 54,009.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,878.10 : 164,817.15 = 36,006.10 : x
  2. Step 2: Convert to fraction form
    109,878.10/164,817.15 = 36,006.10/x
  3. Step 3: Cross multiply
    109,878.10x = 164,817.15 × 36,006.10
  4. Step 4: Simplify right side
    109,878.10x = 5,934,422,784.62
  5. Step 5: Solve for x
    x = 5,934,422,784.62/109,878.10
  6. Step 6: Final answer
    x = 54,009.15

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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.