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Finding the Fourth Proportional to 476,067.40, 714,098 and 121,078.34

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Solution

The fourth proportional to 476,067.40, 714,098 and 121,078.34 is: 181,616.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,067.40 : 714,098 = 121,078.34 : x
  2. Step 2: Convert to fraction form
    476,067.40/714,098 = 121,078.34/x
  3. Step 3: Cross multiply
    476,067.40x = 714,098 × 121,078.34
  4. Step 4: Simplify right side
    476,067.40x = 86,461,800,437.32
  5. Step 5: Solve for x
    x = 86,461,800,437.32/476,067.40
  6. Step 6: Final answer
    x = 181,616.72

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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.