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Finding the Fourth Proportional to 560,685.40, 841,156.89 and 161,329.48

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Solution

The fourth proportional to 560,685.40, 841,156.89 and 161,329.48 is: 242,031.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,685.40 : 841,156.89 = 161,329.48 : x
  2. Step 2: Convert to fraction form
    560,685.40/841,156.89 = 161,329.48/x
  3. Step 3: Cross multiply
    560,685.40x = 841,156.89 × 161,329.48
  4. Step 4: Simplify right side
    560,685.40x = 135,703,403,662.12
  5. Step 5: Solve for x
    x = 135,703,403,662.12/560,685.40
  6. Step 6: Final answer
    x = 242,031.28

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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.