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Finding the Fourth Proportional to 185,362.40, 278,043.60 and 162,034.40

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Solution

The fourth proportional to 185,362.40, 278,043.60 and 162,034.40 is: 243,051.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,362.40 : 278,043.60 = 162,034.40 : x
  2. Step 2: Convert to fraction form
    185,362.40/278,043.60 = 162,034.40/x
  3. Step 3: Cross multiply
    185,362.40x = 278,043.60 × 162,034.40
  4. Step 4: Simplify right side
    185,362.40x = 45,052,627,899.84
  5. Step 5: Solve for x
    x = 45,052,627,899.84/185,362.40
  6. Step 6: Final answer
    x = 243,051.60

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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.