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Finding the Fourth Proportional to 368,869.40, 553,304.10 and 181,856.60

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Solution

The fourth proportional to 368,869.40, 553,304.10 and 181,856.60 is: 272,784.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,869.40 : 553,304.10 = 181,856.60 : x
  2. Step 2: Convert to fraction form
    368,869.40/553,304.10 = 181,856.60/x
  3. Step 3: Cross multiply
    368,869.40x = 553,304.10 × 181,856.60
  4. Step 4: Simplify right side
    368,869.40x = 100,622,002,392.06
  5. Step 5: Solve for x
    x = 100,622,002,392.06/368,869.40
  6. Step 6: Final answer
    x = 272,784.90

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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.