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Finding the Fourth Proportional to 174,978.40, 262,467.60 and 56,661.70

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Solution

The fourth proportional to 174,978.40, 262,467.60 and 56,661.70 is: 84,992.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,978.40 : 262,467.60 = 56,661.70 : x
  2. Step 2: Convert to fraction form
    174,978.40/262,467.60 = 56,661.70/x
  3. Step 3: Cross multiply
    174,978.40x = 262,467.60 × 56,661.70
  4. Step 4: Simplify right side
    174,978.40x = 14,871,860,410.92
  5. Step 5: Solve for x
    x = 14,871,860,410.92/174,978.40
  6. Step 6: Final answer
    x = 84,992.55

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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.