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Finding the Fourth Proportional to 99,915.86, 149,860.10 and 33,354.46

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Solution

The fourth proportional to 99,915.86, 149,860.10 and 33,354.46 is: 50,027.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,915.86 : 149,860.10 = 33,354.46 : x
  2. Step 2: Convert to fraction form
    99,915.86/149,860.10 = 33,354.46/x
  3. Step 3: Cross multiply
    99,915.86x = 149,860.10 × 33,354.46
  4. Step 4: Simplify right side
    99,915.86x = 4,998,502,711.05
  5. Step 5: Solve for x
    x = 4,998,502,711.05/99,915.86
  6. Step 6: Final answer
    x = 50,027.12

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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.