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Finding the Fourth Proportional to 112,100,999.90, 168,151,499.85 and 112,100,999.90

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Solution

The fourth proportional to 112,100,999.90, 168,151,499.85 and 112,100,999.90 is: 168,151,499.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,100,999.90 : 168,151,499.85 = 112,100,999.90 : x
  2. Step 2: Convert to fraction form
    112,100,999.90/168,151,499.85 = 112,100,999.90/x
  3. Step 3: Cross multiply
    112,100,999.90x = 168,151,499.85 × 112,100,999.90
  4. Step 4: Simplify right side
    112,100,999.90x = 18,849,951,267,869,700
  5. Step 5: Solve for x
    x = 18,849,951,267,869,700/112,100,999.90
  6. Step 6: Final answer
    x = 168,151,499.85

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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.