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Finding the Fourth Proportional to 145,671.58, 218,325.87 and 52,074.46

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Solution

The fourth proportional to 145,671.58, 218,325.87 and 52,074.46 is: 78,046.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,671.58 : 218,325.87 = 52,074.46 : x
  2. Step 2: Convert to fraction form
    145,671.58/218,325.87 = 52,074.46/x
  3. Step 3: Cross multiply
    145,671.58x = 218,325.87 × 52,074.46
  4. Step 4: Simplify right side
    145,671.58x = 11,369,201,784.28
  5. Step 5: Solve for x
    x = 11,369,201,784.28/145,671.58
  6. Step 6: Final answer
    x = 78,046.81

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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.