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Finding the Fourth Proportional to 560,687.40, 841,159.89 and 161,331.48

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Solution

The fourth proportional to 560,687.40, 841,159.89 and 161,331.48 is: 242,034.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,687.40 : 841,159.89 = 161,331.48 : x
  2. Step 2: Convert to fraction form
    560,687.40/841,159.89 = 161,331.48/x
  3. Step 3: Cross multiply
    560,687.40x = 841,159.89 × 161,331.48
  4. Step 4: Simplify right side
    560,687.40x = 135,705,569,970.34
  5. Step 5: Solve for x
    x = 135,705,569,970.34/560,687.40
  6. Step 6: Final answer
    x = 242,034.28

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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.