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Finding the Fourth Proportional to 100,848.40, 151,272.60 and 56,611.60

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Solution

The fourth proportional to 100,848.40, 151,272.60 and 56,611.60 is: 84,917.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,848.40 : 151,272.60 = 56,611.60 : x
  2. Step 2: Convert to fraction form
    100,848.40/151,272.60 = 56,611.60/x
  3. Step 3: Cross multiply
    100,848.40x = 151,272.60 × 56,611.60
  4. Step 4: Simplify right side
    100,848.40x = 8,563,783,922.16
  5. Step 5: Solve for x
    x = 8,563,783,922.16/100,848.40
  6. Step 6: Final answer
    x = 84,917.40

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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.