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Finding the Fourth Proportional to 109,907.35, 164,915.70 and 43,349.65

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Solution

The fourth proportional to 109,907.35, 164,915.70 and 43,349.65 is: 65,046.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,907.35 : 164,915.70 = 43,349.65 : x
  2. Step 2: Convert to fraction form
    109,907.35/164,915.70 = 43,349.65/x
  3. Step 3: Cross multiply
    109,907.35x = 164,915.70 × 43,349.65
  4. Step 4: Simplify right side
    109,907.35x = 7,149,037,874.51
  5. Step 5: Solve for x
    x = 7,149,037,874.51/109,907.35
  6. Step 6: Final answer
    x = 65,046.04

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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.