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Finding the Fourth Proportional to 99,273.60, 148,910.40 and 59,907.60

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Solution

The fourth proportional to 99,273.60, 148,910.40 and 59,907.60 is: 89,861.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,273.60 : 148,910.40 = 59,907.60 : x
  2. Step 2: Convert to fraction form
    99,273.60/148,910.40 = 59,907.60/x
  3. Step 3: Cross multiply
    99,273.60x = 148,910.40 × 59,907.60
  4. Step 4: Simplify right side
    99,273.60x = 8,920,864,679.04
  5. Step 5: Solve for x
    x = 8,920,864,679.04/99,273.60
  6. Step 6: Final answer
    x = 89,861.40

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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.