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Finding the Fourth Proportional to 140,611.60, 210,917.40 and 140,611.60

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Solution

The fourth proportional to 140,611.60, 210,917.40 and 140,611.60 is: 210,917.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,611.60 : 210,917.40 = 140,611.60 : x
  2. Step 2: Convert to fraction form
    140,611.60/210,917.40 = 140,611.60/x
  3. Step 3: Cross multiply
    140,611.60x = 210,917.40 × 140,611.60
  4. Step 4: Simplify right side
    140,611.60x = 29,657,433,081.84
  5. Step 5: Solve for x
    x = 29,657,433,081.84/140,611.60
  6. Step 6: Final answer
    x = 210,917.40

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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.