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Finding the Fourth Proportional to 133,670, 184,464.60 and 79,957.28

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Solution

The fourth proportional to 133,670, 184,464.60 and 79,957.28 is: 110,341.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,670 : 184,464.60 = 79,957.28 : x
  2. Step 2: Convert to fraction form
    133,670/184,464.60 = 79,957.28/x
  3. Step 3: Cross multiply
    133,670x = 184,464.60 × 79,957.28
  4. Step 4: Simplify right side
    133,670x = 14,749,287,672.29
  5. Step 5: Solve for x
    x = 14,749,287,672.29/133,670
  6. Step 6: Final answer
    x = 110,341.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.