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Finding the Fourth Proportional to 99,659,621.90, 149,489,432.85 and 99,659,621.90

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Solution

The fourth proportional to 99,659,621.90, 149,489,432.85 and 99,659,621.90 is: 149,489,432.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,659,621.90 : 149,489,432.85 = 99,659,621.90 : x
  2. Step 2: Convert to fraction form
    99,659,621.90/149,489,432.85 = 99,659,621.90/x
  3. Step 3: Cross multiply
    99,659,621.90x = 149,489,432.85 × 99,659,621.90
  4. Step 4: Simplify right side
    99,659,621.90x = 14,898,060,355,876,440
  5. Step 5: Solve for x
    x = 14,898,060,355,876,440/99,659,621.90
  6. Step 6: Final answer
    x = 149,489,432.85

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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.