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Finding the Fourth Proportional to 96,611.80, 144,989.70 and 49,840.60

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Solution

The fourth proportional to 96,611.80, 144,989.70 and 49,840.60 is: 74,798.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,611.80 : 144,989.70 = 49,840.60 : x
  2. Step 2: Convert to fraction form
    96,611.80/144,989.70 = 49,840.60/x
  3. Step 3: Cross multiply
    96,611.80x = 144,989.70 × 49,840.60
  4. Step 4: Simplify right side
    96,611.80x = 7,226,373,641.82
  5. Step 5: Solve for x
    x = 7,226,373,641.82/96,611.80
  6. Step 6: Final answer
    x = 74,798.04

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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.