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Finding the Fourth Proportional to 207,036.20, 310,359.90 and 162,032.60

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Solution

The fourth proportional to 207,036.20, 310,359.90 and 162,032.60 is: 242,896.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,036.20 : 310,359.90 = 162,032.60 : x
  2. Step 2: Convert to fraction form
    207,036.20/310,359.90 = 162,032.60/x
  3. Step 3: Cross multiply
    207,036.20x = 310,359.90 × 162,032.60
  4. Step 4: Simplify right side
    207,036.20x = 50,288,421,532.74
  5. Step 5: Solve for x
    x = 50,288,421,532.74/207,036.20
  6. Step 6: Final answer
    x = 242,896.76

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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.