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Finding the Fourth Proportional to 368,971.44, 553,534.92 and 119,634

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Solution

The fourth proportional to 368,971.44, 553,534.92 and 119,634 is: 179,476.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,971.44 : 553,534.92 = 119,634 : x
  2. Step 2: Convert to fraction form
    368,971.44/553,534.92 = 119,634/x
  3. Step 3: Cross multiply
    368,971.44x = 553,534.92 × 119,634
  4. Step 4: Simplify right side
    368,971.44x = 66,221,596,619.28
  5. Step 5: Solve for x
    x = 66,221,596,619.28/368,971.44
  6. Step 6: Final answer
    x = 179,476.21

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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.