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Finding the Fourth Proportional to 99,711.58, 149,568.30 and 29,590.90

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Solution

The fourth proportional to 99,711.58, 149,568.30 and 29,590.90 is: 44,386.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,711.58 : 149,568.30 = 29,590.90 : x
  2. Step 2: Convert to fraction form
    99,711.58/149,568.30 = 29,590.90/x
  3. Step 3: Cross multiply
    99,711.58x = 149,568.30 × 29,590.90
  4. Step 4: Simplify right side
    99,711.58x = 4,425,860,608.47
  5. Step 5: Solve for x
    x = 4,425,860,608.47/99,711.58
  6. Step 6: Final answer
    x = 44,386.63

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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.