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Finding the Fourth Proportional to 85,211,999.80, 127,817,999.70 and 23,801,039.80

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Solution

The fourth proportional to 85,211,999.80, 127,817,999.70 and 23,801,039.80 is: 35,701,559.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,211,999.80 : 127,817,999.70 = 23,801,039.80 : x
  2. Step 2: Convert to fraction form
    85,211,999.80/127,817,999.70 = 23,801,039.80/x
  3. Step 3: Cross multiply
    85,211,999.80x = 127,817,999.70 × 23,801,039.80
  4. Step 4: Simplify right side
    85,211,999.80x = 3,042,201,298,016,088
  5. Step 5: Solve for x
    x = 3,042,201,298,016,088/85,211,999.80
  6. Step 6: Final answer
    x = 35,701,559.70

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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.