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Finding the Fourth Proportional to 560,562.96, 840,754.08 and 161,112.72

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Solution

The fourth proportional to 560,562.96, 840,754.08 and 161,112.72 is: 241,643.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,562.96 : 840,754.08 = 161,112.72 : x
  2. Step 2: Convert to fraction form
    560,562.96/840,754.08 = 161,112.72/x
  3. Step 3: Cross multiply
    560,562.96x = 840,754.08 × 161,112.72
  4. Step 4: Simplify right side
    560,562.96x = 135,456,176,679.90
  5. Step 5: Solve for x
    x = 135,456,176,679.90/560,562.96
  6. Step 6: Final answer
    x = 241,643.11

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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.