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Finding the Fourth Proportional to 116,646, 174,994.92 and 42,774

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Solution

The fourth proportional to 116,646, 174,994.92 and 42,774 is: 64,170.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,646 : 174,994.92 = 42,774 : x
  2. Step 2: Convert to fraction form
    116,646/174,994.92 = 42,774/x
  3. Step 3: Cross multiply
    116,646x = 174,994.92 × 42,774
  4. Step 4: Simplify right side
    116,646x = 7,485,232,708.08
  5. Step 5: Solve for x
    x = 7,485,232,708.08/116,646
  6. Step 6: Final answer
    x = 64,170.50

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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.