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Finding the Fourth Proportional to 262,276.44, 392,750.31 and 162,631.25

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Solution

The fourth proportional to 262,276.44, 392,750.31 and 162,631.25 is: 243,534.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,276.44 : 392,750.31 = 162,631.25 : x
  2. Step 2: Convert to fraction form
    262,276.44/392,750.31 = 162,631.25/x
  3. Step 3: Cross multiply
    262,276.44x = 392,750.31 × 162,631.25
  4. Step 4: Simplify right side
    262,276.44x = 63,873,473,853.19
  5. Step 5: Solve for x
    x = 63,873,473,853.19/262,276.44
  6. Step 6: Final answer
    x = 243,534.93

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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.