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Finding the Fourth Proportional to 98,611.80, 147,917.70 and 98,611.80

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Solution

The fourth proportional to 98,611.80, 147,917.70 and 98,611.80 is: 147,917.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,611.80 : 147,917.70 = 98,611.80 : x
  2. Step 2: Convert to fraction form
    98,611.80/147,917.70 = 98,611.80/x
  3. Step 3: Cross multiply
    98,611.80x = 147,917.70 × 98,611.80
  4. Step 4: Simplify right side
    98,611.80x = 14,586,430,648.86
  5. Step 5: Solve for x
    x = 14,586,430,648.86/98,611.80
  6. Step 6: Final answer
    x = 147,917.70

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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.